patch 9.0.1973: Clean up cmdline option completion code

Commit: 
https://github.com/vim/vim/commit/6d113472601fa6f3a444a95ef7b11d4309215117
Author: Yee Cheng Chin <ychin....@gmail.com>
Date:   Mon Oct 2 21:38:39 2023 +0200

    patch 9.0.1973: Clean up cmdline option completion code
    
    Problem:  Clean up cmdline option completion code
    Solution: Fix various minor problems
    
    - Fix manual array size calculations to just use `ARRAY_LENGTH()`.
    - Fix unintentional typo in comments due to copy-paste error.
    - Fix assert_equal() usages to pass the expected value to first
      parameter instead of 2nd one to avoid confusion.
    - Fix signed vs unsigned warnings
    - Correct misplaced comments about set_op_T and set_prefix_T
      and fix a typo in another comment
    
    closes: #13249
    closes: #13237
    
    Signed-off-by: Christian Brabandt <c...@256bit.org>
    Co-authored-by: Yee Cheng Chin <ychin....@gmail.com>
    Co-authored-by: zeertzjq <zeert...@outlook.com>

diff --git a/src/move.c b/src/move.c
index 9c025d42b..ba1eadb9f 100644
--- a/src/move.c
+++ b/src/move.c
@@ -3587,7 +3587,7 @@ do_check_cursorbind(void)
     FOR_ALL_WINDOWS(curwin)
     {
        curbuf = curwin->w_buffer;
-       // skip original window  and windows with 'noscrollbind'
+       // skip original window and windows with 'nocursorbind'
        if (curwin != old_curwin && curwin->w_p_crb)
        {
 # ifdef FEAT_DIFF
diff --git a/src/option.c b/src/option.c
index c1d80fa81..ae2ca3a34 100644
--- a/src/option.c
+++ b/src/option.c
@@ -1312,7 +1312,7 @@ ex_set(exarg_T *eap)
 }
 
 /*
- * :set operator types
+ * :set boolean option prefix
  */
 typedef enum {
     PREFIX_NO = 0,     // "no" prefix
@@ -1830,7 +1830,7 @@ stropt_get_newval(
                                             &(options[opt_idx]), OPT_GLOBAL));
     else
     {
-       ++arg;  // joption_value2stringump to after the '=' or ':'
+       ++arg;  // jump to after the '=' or ':'
 
        // Set 'keywordprg' to ":help" if an empty
        // value was passed to :set by the user.
@@ -7991,7 +7991,7 @@ ExpandSettingSubtract(
            return FAIL;
        }
 
-       int num_flags = STRLEN(option_val);
+       size_t num_flags = STRLEN(option_val);
        if (num_flags == 0)
            return FAIL;
 
diff --git a/src/optionstr.c b/src/optionstr.c
index 5a3dd6e75..dbef8ea1c 100644
--- a/src/optionstr.c
+++ b/src/optionstr.c
@@ -737,7 +737,7 @@ did_set_option_listflag(char_u *val, char_u *flags, char 
*errbuf)
 expand_set_opt_string(
        optexpand_T *args,
        char **values,
-       int numValues,
+       size_t numValues,
        int *numMatches,
        char_u ***matches)
 {
@@ -863,7 +863,7 @@ expand_set_opt_listflag(
     int            append = args->oe_append;
     int            include_orig_val = args->oe_include_orig_val && 
(*option_val != NUL);
 
-    int num_flags = STRLEN(flags);
+    size_t num_flags = STRLEN(flags);
 
     // Assume we only have small number of flags, so just allocate max size.
     *matches = ALLOC_MULT(char_u *, num_flags + 1);
@@ -940,7 +940,7 @@ expand_set_ambiwidth(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_ambw_values,
-           sizeof(p_ambw_values) / sizeof(p_ambw_values[0]) - 1,
+           ARRAY_LENGTH(p_ambw_values) - 1,
            numMatches,
            matches);
 }
@@ -987,7 +987,7 @@ expand_set_background(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_bg_values,
-           sizeof(p_bg_values) / sizeof(p_bg_values[0]) - 1,
+           ARRAY_LENGTH(p_bg_values) - 1,
            numMatches,
            matches);
 }
@@ -1015,7 +1015,7 @@ expand_set_backspace(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_bs_values,
-           sizeof(p_bs_values) / sizeof(p_bs_values[0]) - 1,
+           ARRAY_LENGTH(p_bs_values) - 1,
            numMatches,
            matches);
 }
@@ -1063,7 +1063,7 @@ expand_set_backupcopy(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_bkc_values,
-           sizeof(p_bkc_values) / sizeof(p_bkc_values[0]) - 1,
+           ARRAY_LENGTH(p_bkc_values) - 1,
            numMatches,
            matches);
 }
@@ -1096,7 +1096,7 @@ expand_set_belloff(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_bo_values,
-           sizeof(p_bo_values) / sizeof(p_bo_values[0]) - 1,
+           ARRAY_LENGTH(p_bo_values) - 1,
            numMatches,
            matches);
 }
@@ -1125,7 +1125,7 @@ expand_set_breakindentopt(optexpand_T *args, int 
*numMatches, char_u ***matches)
     return expand_set_opt_string(
            args,
            p_briopt_values,
-           sizeof(p_briopt_values) / sizeof(p_briopt_values[0]) - 1,
+           ARRAY_LENGTH(p_briopt_values) - 1,
            numMatches,
            matches);
 }
@@ -1151,7 +1151,7 @@ expand_set_browsedir(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_bsdir_values,
-           sizeof(p_bsdir_values) / sizeof(p_bsdir_values[0]) - 1,
+           ARRAY_LENGTH(p_bsdir_values) - 1,
            numMatches,
            matches);
 }
@@ -1172,7 +1172,7 @@ expand_set_bufhidden(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_bufhidden_values,
-           sizeof(p_bufhidden_values) / sizeof(p_bufhidden_values[0]) - 1,
+           ARRAY_LENGTH(p_bufhidden_values) - 1,
            numMatches,
            matches);
 }
@@ -1203,7 +1203,7 @@ expand_set_buftype(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_buftype_values,
-           sizeof(p_buftype_values) / sizeof(p_buftype_values[0]) - 1,
+           ARRAY_LENGTH(p_buftype_values) - 1,
            numMatches,
            matches);
 }
@@ -1223,7 +1223,7 @@ expand_set_casemap(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_cmp_values,
-           sizeof(p_cmp_values) / sizeof(p_cmp_values[0]) - 1,
+           ARRAY_LENGTH(p_cmp_values) - 1,
            numMatches,
            matches);
 }
@@ -1235,7 +1235,7 @@ expand_set_clipboard(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_cb_values,
-           sizeof(p_cb_values) / sizeof(p_cb_values[0]) - 1,
+           ARRAY_LENGTH(p_cb_values) - 1,
            numMatches,
            matches);
 }
@@ -1461,7 +1461,7 @@ expand_set_complete(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_cpt_values,
-           sizeof(p_cpt_values) / sizeof(p_cpt_values[0]) - 1,
+           ARRAY_LENGTH(p_cpt_values) - 1,
            numMatches,
            matches);
 }
@@ -1485,7 +1485,7 @@ expand_set_completeopt(optexpand_T *args, int 
*numMatches, char_u ***matches)
     return expand_set_opt_string(
            args,
            p_cot_values,
-           sizeof(p_cot_values) / sizeof(p_cot_values[0]) - 1,
+           ARRAY_LENGTH(p_cot_values) - 1,
            numMatches,
            matches);
 }
@@ -1525,7 +1525,7 @@ expand_set_completeslash(optexpand_T *args, int 
*numMatches, char_u ***matches)
     return expand_set_opt_string(
            args,
            p_csl_values,
-           sizeof(p_csl_values) / sizeof(p_csl_values[0]) - 1,
+           ARRAY_LENGTH(p_csl_values) - 1,
            numMatches,
            matches);
 }
@@ -1664,7 +1664,7 @@ expand_set_cryptmethod(optexpand_T *args, int 
*numMatches, char_u ***matches)
     return expand_set_opt_string(
            args,
            p_cm_values,
-           sizeof(p_cm_values) / sizeof(p_cm_values[0]) - 1,
+           ARRAY_LENGTH(p_cm_values) - 1,
            numMatches,
            matches);
 }
@@ -1722,7 +1722,7 @@ expand_set_cursorlineopt(optexpand_T *args, int 
*numMatches, char_u ***matches)
     return expand_set_opt_string(
            args,
            p_culopt_values,
-           sizeof(p_culopt_values) / sizeof(p_culopt_values[0]) - 1,
+           ARRAY_LENGTH(p_culopt_values) - 1,
            numMatches,
            matches);
 }
@@ -1743,7 +1743,7 @@ expand_set_debug(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_debug_values,
-           sizeof(p_debug_values) / sizeof(p_debug_values[0]) - 1,
+           ARRAY_LENGTH(p_debug_values) - 1,
            numMatches,
            matches);
 }
@@ -1769,14 +1769,14 @@ expand_set_diffopt(optexpand_T *args, int *numMatches, 
char_u ***matches)
     if (xp->xp_pattern > args->oe_set_arg && *(xp->xp_pattern-1) == ':')
     {
        // Within "algorithm:", we have a subgroup of possible options.
-       int algo_len = STRLEN("algorithm:");
+       int algo_len = (int)STRLEN("algorithm:");
        if (xp->xp_pattern - args->oe_set_arg >= algo_len &&
                STRNCMP(xp->xp_pattern - algo_len, "algorithm:", algo_len) == 0)
        {
            return expand_set_opt_string(
                    args,
                    p_dip_algorithm_values,
-                   sizeof(p_dip_algorithm_values) / 
sizeof(p_dip_algorithm_values[0]) - 1,
+                   ARRAY_LENGTH(p_dip_algorithm_values) - 1,
                    numMatches,
                    matches);
        }
@@ -1786,7 +1786,7 @@ expand_set_diffopt(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_dip_values,
-           sizeof(p_dip_values) / sizeof(p_dip_values[0]) - 1,
+           ARRAY_LENGTH(p_dip_values) - 1,
            numMatches,
            matches);
 }
@@ -1811,7 +1811,7 @@ expand_set_display(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_dy_values,
-           sizeof(p_dy_values) / sizeof(p_dy_values[0]) - 1,
+           ARRAY_LENGTH(p_dy_values) - 1,
            numMatches,
            matches);
 }
@@ -1831,7 +1831,7 @@ expand_set_eadirection(optexpand_T *args, int 
*numMatches, char_u ***matches)
     return expand_set_opt_string(
            args,
            p_ead_values,
-           sizeof(p_ead_values) / sizeof(p_ead_values[0]) - 1,
+           ARRAY_LENGTH(p_ead_values) - 1,
            numMatches,
            matches);
 }
@@ -2005,7 +2005,7 @@ expand_set_fileformat(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_ff_values,
-           sizeof(p_ff_values) / sizeof(p_ff_values[0]) - 1,
+           ARRAY_LENGTH(p_ff_values) - 1,
            numMatches,
            matches);
 }
@@ -2064,7 +2064,7 @@ expand_set_foldclose(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_fcl_values,
-           sizeof(p_fcl_values) / sizeof(p_fcl_values[0]) - 1,
+           ARRAY_LENGTH(p_fcl_values) - 1,
            numMatches,
            matches);
 }
@@ -2140,7 +2140,7 @@ expand_set_foldmethod(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_fdm_values,
-           sizeof(p_fdm_values) / sizeof(p_fdm_values[0]) - 1,
+           ARRAY_LENGTH(p_fdm_values) - 1,
            numMatches,
            matches);
 }
@@ -2160,7 +2160,7 @@ expand_set_foldopen(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_fdo_values,
-           sizeof(p_fdo_values) / sizeof(p_fdo_values[0]) - 1,
+           ARRAY_LENGTH(p_fdo_values) - 1,
            numMatches,
            matches);
 }
@@ -2381,7 +2381,7 @@ expand_set_highlight(optexpand_T *args, int *numMatches, 
char_u ***matches)
     char_u         *p;
     expand_T       *xp = args->oe_xp;
     static char_u   hl_flags[HLF_COUNT] = HL_FLAGS;
-    int                    i;
+    size_t         i;
     int                    count = 0;
 
     if (xp->xp_pattern > args->oe_set_arg && *(xp->xp_pattern-1) == ':')
@@ -2446,15 +2446,15 @@ expand_set_highlight(optexpand_T *args, int 
*numMatches, char_u ***matches)
     // the returned match.
 
     // Note: Keep this in sync with highlight_changed()
-    static char p_hl_mode_values[] =
+    static char_u p_hl_mode_values[] =
        {':', 'b', 'i', '-', 'n', 'r', 's', 'u', 'c', '2', 'd', '=', 't'};
-    int num_hl_modes = sizeof(p_hl_mode_values) / sizeof(p_hl_mode_values[0]);
+    size_t num_hl_modes = ARRAY_LENGTH(p_hl_mode_values);
 
     *matches = ALLOC_MULT(char_u *, num_hl_modes);
     if (*matches == NULL)
        return FAIL;
 
-    int pattern_len = STRLEN(xp->xp_pattern);
+    size_t pattern_len = STRLEN(xp->xp_pattern);
 
     for (i = 0; i < num_hl_modes; i++)
     {
@@ -2576,7 +2576,7 @@ expand_set_jumpoptions(optexpand_T *args, int 
*numMatches, char_u ***matches)
     return expand_set_opt_string(
            args,
            p_jop_values,
-           sizeof(p_jop_values) / sizeof(p_jop_values[0]) - 1,
+           ARRAY_LENGTH(p_jop_values) - 1,
            numMatches,
            matches);
 }
@@ -2660,7 +2660,7 @@ expand_set_keymodel(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_km_values,
-           sizeof(p_km_values) / sizeof(p_km_values[0]) - 1,
+           ARRAY_LENGTH(p_km_values) - 1,
            numMatches,
            matches);
 }
@@ -2692,7 +2692,7 @@ expand_set_keyprotocol(optexpand_T *args, int 
*numMatches, char_u ***matches)
        return expand_set_opt_string(
                args,
                p_kpc_protocol_values,
-               sizeof(p_kpc_protocol_values) / 
sizeof(p_kpc_protocol_values[0]) - 1,
+               ARRAY_LENGTH(p_kpc_protocol_values) - 1,
                numMatches,
                matches);
     }
@@ -2725,7 +2725,7 @@ expand_set_lispoptions(optexpand_T *args, int 
*numMatches, char_u ***matches)
     return expand_set_opt_string(
            args,
            p_lop_values,
-           sizeof(p_lop_values) / sizeof(p_lop_values[0]) - 1,
+           ARRAY_LENGTH(p_lop_values) - 1,
            numMatches,
            matches);
 }
@@ -2831,7 +2831,7 @@ expand_set_mousemodel(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_mousem_values,
-           sizeof(p_mousem_values) / sizeof(p_mousem_values[0]) - 1,
+           ARRAY_LENGTH(p_mousem_values) - 1,
            numMatches,
            matches);
 }
@@ -2866,7 +2866,7 @@ expand_set_nrformats(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_nf_values,
-           sizeof(p_nf_values) / sizeof(p_nf_values[0]) - 1,
+           ARRAY_LENGTH(p_nf_values) - 1,
            numMatches,
            matches);
 }
@@ -2940,29 +2940,29 @@ expand_set_popupoption(optexpand_T *args, int 
*numMatches, char_u ***matches)
     if (xp->xp_pattern > args->oe_set_arg && *(xp->xp_pattern-1) == ':')
     {
        // Within "highlight:"/"border:"/"align:", we have a subgroup of 
possible options.
-       int border_len = STRLEN("border:");
+       int border_len = (int)STRLEN("border:");
        if (xp->xp_pattern - args->oe_set_arg >= border_len &&
                STRNCMP(xp->xp_pattern - border_len, "border:", border_len) == 
0)
        {
            return expand_set_opt_string(
                    args,
                    p_popup_option_border_values,
-                   sizeof(p_popup_option_border_values) / 
sizeof(p_popup_option_border_values[0]) - 1,
+                   ARRAY_LENGTH(p_popup_option_border_values) - 1,
                    numMatches,
                    matches);
        }
-       int align_len = STRLEN("align:");
+       int align_len = (int)STRLEN("align:");
        if (xp->xp_pattern - args->oe_set_arg >= align_len &&
                STRNCMP(xp->xp_pattern - align_len, "align:", align_len) == 0)
        {
            return expand_set_opt_string(
                    args,
                    p_popup_option_align_values,
-                   sizeof(p_popup_option_align_values) / 
sizeof(p_popup_option_align_values[0]) - 1,
+                   ARRAY_LENGTH(p_popup_option_align_values) - 1,
                    numMatches,
                    matches);
        }
-       int highlight_len = STRLEN("highlight:");
+       int highlight_len = (int)STRLEN("highlight:");
        if (xp->xp_pattern - args->oe_set_arg >= highlight_len &&
                STRNCMP(xp->xp_pattern - highlight_len, "highlight:", 
highlight_len) == 0)
        {
@@ -2979,7 +2979,7 @@ expand_set_popupoption(optexpand_T *args, int 
*numMatches, char_u ***matches)
     return expand_set_opt_string(
            args,
            p_popup_option_values,
-           sizeof(p_popup_option_values) / sizeof(p_popup_option_values[0]) - 
1,
+           ARRAY_LENGTH(p_popup_option_values) - 1,
            numMatches,
            matches);
 }
@@ -3022,7 +3022,7 @@ did_set_printencoding(optset_T *args UNUSED)
     static char_u *
 get_printoptions_names(expand_T *xp UNUSED, int idx)
 {
-    if (idx >= (int)(sizeof(printer_opts) / sizeof(printer_opts[0])))
+    if (idx >= (int)ARRAY_LENGTH(printer_opts))
        return NULL;
     return (char_u*)printer_opts[idx].name;
 }
@@ -3115,7 +3115,7 @@ expand_set_rightleftcmd(optexpand_T *args, int 
*numMatches, char_u ***matches)
     return expand_set_opt_string(
            args,
            p_rlc_values,
-           sizeof(p_rlc_values) / sizeof(p_rlc_values[0]) - 1,
+           ARRAY_LENGTH(p_rlc_values) - 1,
            numMatches,
            matches);
 }
@@ -3147,7 +3147,7 @@ expand_set_scrollopt(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_scbopt_values,
-           sizeof(p_scbopt_values) / sizeof(p_scbopt_values[0]) - 1,
+           ARRAY_LENGTH(p_scbopt_values) - 1,
            numMatches,
            matches);
 }
@@ -3170,7 +3170,7 @@ expand_set_selection(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_sel_values,
-           sizeof(p_sel_values) / sizeof(p_sel_values[0]) - 1,
+           ARRAY_LENGTH(p_sel_values) - 1,
            numMatches,
            matches);
 }
@@ -3190,7 +3190,7 @@ expand_set_selectmode(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_slm_values,
-           sizeof(p_slm_values) / sizeof(p_slm_values[0]) - 1,
+           ARRAY_LENGTH(p_slm_values) - 1,
            numMatches,
            matches);
 }
@@ -3221,7 +3221,7 @@ expand_set_sessionoptions(optexpand_T *args, int 
*numMatches, char_u ***matches)
     return expand_set_opt_string(
            args,
            p_ssop_values,
-           sizeof(p_ssop_values) / sizeof(p_ssop_values[0]) - 1,
+           ARRAY_LENGTH(p_ssop_values) - 1,
            numMatches,
            matches);
 }
@@ -3280,7 +3280,7 @@ expand_set_showcmdloc(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_sloc_values,
-           sizeof(p_sloc_values) / sizeof(p_sloc_values[0]) - 1,
+           ARRAY_LENGTH(p_sloc_values) - 1,
            numMatches,
            matches);
 }
@@ -3312,7 +3312,7 @@ expand_set_signcolumn(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_scl_values,
-           sizeof(p_scl_values) / sizeof(p_scl_values[0]) - 1,
+           ARRAY_LENGTH(p_scl_values) - 1,
            numMatches,
            matches);
 }
@@ -3382,7 +3382,7 @@ expand_set_spelloptions(optexpand_T *args, int 
*numMatches, char_u ***matches)
     return expand_set_opt_string(
            args,
            p_spo_values,
-           sizeof(p_spo_values) / sizeof(p_spo_values[0]) - 1,
+           ARRAY_LENGTH(p_spo_values) - 1,
            numMatches,
            matches);
 }
@@ -3405,7 +3405,7 @@ expand_set_spellsuggest(optexpand_T *args, int 
*numMatches, char_u ***matches)
     return expand_set_opt_string(
            args,
            p_sps_values,
-           sizeof(p_sps_values) / sizeof(p_sps_values[0]) - 1,
+           ARRAY_LENGTH(p_sps_values) - 1,
            numMatches,
            matches);
 }
@@ -3426,7 +3426,7 @@ expand_set_splitkeep(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_spk_values,
-           sizeof(p_spk_values) / sizeof(p_spk_values[0]) - 1,
+           ARRAY_LENGTH(p_spk_values) - 1,
            numMatches,
            matches);
 }
@@ -3457,7 +3457,7 @@ expand_set_swapsync(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_sws_values,
-           sizeof(p_sws_values) / sizeof(p_sws_values[0]) - 1,
+           ARRAY_LENGTH(p_sws_values) - 1,
            numMatches,
            matches);
 }
@@ -3477,7 +3477,7 @@ expand_set_switchbuf(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_swb_values,
-           sizeof(p_swb_values) / sizeof(p_swb_values[0]) - 1,
+           ARRAY_LENGTH(p_swb_values) - 1,
            numMatches,
            matches);
 }
@@ -3529,7 +3529,7 @@ expand_set_tagcase(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_tc_values,
-           sizeof(p_tc_values) / sizeof(p_tc_values[0]) - 1,
+           ARRAY_LENGTH(p_tc_values) - 1,
            numMatches,
            matches);
 }
@@ -3674,7 +3674,7 @@ expand_set_termwintype(optexpand_T *args, int 
*numMatches, char_u ***matches)
     return expand_set_opt_string(
            args,
            p_twt_values,
-           sizeof(p_twt_values) / sizeof(p_twt_values[0]) - 1,
+           ARRAY_LENGTH(p_twt_values) - 1,
            numMatches,
            matches);
 }
@@ -3718,7 +3718,7 @@ expand_set_toolbar(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_toolbar_values,
-           sizeof(p_toolbar_values) / sizeof(p_toolbar_values[0]) - 1,
+           ARRAY_LENGTH(p_toolbar_values) - 1,
            numMatches,
            matches);
 }
@@ -3746,7 +3746,7 @@ expand_set_toolbariconsize(optexpand_T *args, int 
*numMatches, char_u ***matches
     return expand_set_opt_string(
            args,
            p_tbis_values,
-           sizeof(p_tbis_values) / sizeof(p_tbis_values[0]) - 1,
+           ARRAY_LENGTH(p_tbis_values) - 1,
            numMatches,
            matches);
 }
@@ -3780,7 +3780,7 @@ expand_set_ttymouse(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_ttym_values,
-           sizeof(p_ttym_values) / sizeof(p_ttym_values[0]) - 1,
+           ARRAY_LENGTH(p_ttym_values) - 1,
            numMatches,
            matches);
 }
@@ -3996,7 +3996,7 @@ expand_set_virtualedit(optexpand_T *args, int 
*numMatches, char_u ***matches)
     return expand_set_opt_string(
            args,
            p_ve_values,
-           sizeof(p_ve_values) / sizeof(p_ve_values[0]) - 1,
+           ARRAY_LENGTH(p_ve_values) - 1,
            numMatches,
            matches);
 }
@@ -4037,7 +4037,7 @@ expand_set_wildmode(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_wim_values,
-           sizeof(p_wim_values) / sizeof(p_wim_values[0]) - 1,
+           ARRAY_LENGTH(p_wim_values) - 1,
            numMatches,
            matches);
 }
@@ -4057,7 +4057,7 @@ expand_set_wildoptions(optexpand_T *args, int 
*numMatches, char_u ***matches)
     return expand_set_opt_string(
            args,
            p_wop_values,
-           sizeof(p_wop_values) / sizeof(p_wop_values[0]) - 1,
+           ARRAY_LENGTH(p_wop_values) - 1,
            numMatches,
            matches);
 }
@@ -4091,7 +4091,7 @@ expand_set_winaltkeys(optexpand_T *args, int *numMatches, 
char_u ***matches)
     return expand_set_opt_string(
            args,
            p_wak_values,
-           sizeof(p_wak_values) / sizeof(p_wak_values[0]) - 1,
+           ARRAY_LENGTH(p_wak_values) - 1,
            numMatches,
            matches);
 }
diff --git a/src/structs.h b/src/structs.h
index 1508f4791..8443a4211 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -588,6 +588,9 @@ typedef enum {
     XP_PREFIX_INV,     // "inv" prefix for bool option
 } xp_prefix_T;
 
+/*
+ * :set operator types
+ */
 typedef enum {
     OP_NONE = 0,
     OP_ADDING,         // "opt+=arg"
diff --git a/src/testdir/test_options.vim b/src/testdir/test_options.vim
index 8cd50694c..2f6c8d283 100644
--- a/src/testdir/test_options.vim
+++ b/src/testdir/test_options.vim
@@ -394,130 +394,130 @@ func Test_set_completion_string_values()
   " Test basic enum string options that have well-defined enum names
   "
 
-  call assert_equal(getcompletion('set display=', 'cmdline'), ['lastline', 
'truncate', 'uhex'])
-  call assert_equal(getcompletion('set display=t', 'cmdline'), ['truncate'])
-  call assert_equal(getcompletion('set display=*ex*', 'cmdline'), ['uhex'])
+  call assert_equal(['lastline', 'truncate', 'uhex'], getcompletion('set 
display=', 'cmdline'))
+  call assert_equal(['truncate'], getcompletion('set display=t', 'cmdline'))
+  call assert_equal(['uhex'], getcompletion('set display=*ex*', 'cmdline'))
 
   " Test that if a value is set, it will populate the results, but only if
   " typed value is empty.
   set display=uhex,lastline
-  call assert_equal(getcompletion('set display=', 'cmdline'), 
['uhex,lastline', 'lastline', 'truncate', 'uhex'])
-  call assert_equal(getcompletion('set display=u', 'cmdline'), ['uhex'])
+  call assert_equal(['uhex,lastline', 'lastline', 'truncate', 'uhex'], 
getcompletion('set display=', 'cmdline'))
+  call assert_equal(['uhex'], getcompletion('set display=u', 'cmdline'))
   " If the set value is part of the enum list, it will show as the first
   " result with no duplicate.
   set display=uhex
-  call assert_equal(getcompletion('set display=', 'cmdline'), ['uhex', 
'lastline', 'truncate'])
+  call assert_equal(['uhex', 'lastline', 'truncate'], getcompletion('set 
display=', 'cmdline'))
   " If empty value, will just show the normal list without an empty item
   set display=
-  call assert_equal(getcompletion('set display=', 'cmdline'), ['lastline', 
'truncate', 'uhex'])
+  call assert_equal(['lastline', 'truncate', 'uhex'], getcompletion('set 
display=', 'cmdline'))
   " Test escaping of the values
-  call assert_equal(getcompletion('set fillchars=', 'cmdline')[0], 
'vert:\|,fold:-,eob:~,lastline:@')
+  call assert_equal('vert:\|,fold:-,eob:~,lastline:@', getcompletion('set 
fillchars=', 'cmdline')[0])
 
   " Test comma-separated lists will expand after a comma.
-  call assert_equal(getcompletion('set display=truncate,*ex*', 'cmdline'), 
['uhex'])
+  call assert_equal(['uhex'], getcompletion('set display=truncate,*ex*', 
'cmdline'))
   " Also test the positioning of the expansion is correct
   call feedkeys(":set display=truncate,l\<Tab>\<C-B>\"\<CR>", 'xt')
   call assert_equal('"set display=truncate,lastline', @:)
   set display&
 
   " Test single-value options will not expand after a comma
-  call assert_equal(getcompletion('set ambw=single,', 'cmdline'), [])
+  call assert_equal([], getcompletion('set ambw=single,', 'cmdline'))
 
   " Test the other simple options to make sure they have basic auto-complete,
   " but don't exhaustively validate their results.
-  call assert_equal(getcompletion('set ambw=', 'cmdline')[0], 'single')
+  call assert_equal('single', getcompletion('set ambw=', 'cmdline')[0])
   call assert_match('light\|dark', getcompletion('set bg=', 'cmdline')[1])
-  call assert_equal(getcompletion('set backspace=', 'cmdline')[0], 'indent')
-  call assert_equal(getcompletion('set backupcopy=', 'cmdline')[1], 'yes')
-  call assert_equal(getcompletion('set belloff=', 'cmdline')[1], 'backspace')
-  call assert_equal(getcompletion('set briopt=', 'cmdline')[1], 'min:')
+  call assert_equal('indent', getcompletion('set backspace=', 'cmdline')[0])
+  call assert_equal('yes', getcompletion('set backupcopy=', 'cmdline')[1])
+  call assert_equal('backspace', getcompletion('set belloff=', 'cmdline')[1])
+  call assert_equal('min:', getcompletion('set briopt=', 'cmdline')[1])
   if exists('+browsedir')
-    call assert_equal(getcompletion('set browsedir=', 'cmdline')[1], 'current')
+    call assert_equal('current', getcompletion('set browsedir=', 'cmdline')[1])
   endif
-  call assert_equal(getcompletion('set bufhidden=', 'cmdline')[1], 'unload')
-  call assert_equal(getcompletion('set buftype=', 'cmdline')[1], 'nowrite')
-  call assert_equal(getcompletion('set casemap=', 'cmdline')[1], 'internal')
+  call assert_equal('unload', getcompletion('set bufhidden=', 'cmdline')[1])
+  call assert_equal('nowrite', getcompletion('set buftype=', 'cmdline')[1])
+  call assert_equal('internal', getcompletion('set casemap=', 'cmdline')[1])
   if exists('+clipboard')
     call assert_match('unnamed', getcompletion('set clipboard=', 'cmdline')[1])
   endif
-  call assert_equal(getcompletion('set complete=', 'cmdline')[1], '.')
-  call assert_equal(getcompletion('set completeopt=', 'cmdline')[1], 'menu')
+  call assert_equal('.', getcompletion('set complete=', 'cmdline')[1])
+  call assert_equal('menu', getcompletion('set completeopt=', 'cmdline')[1])
   if exists('+completeslash')
-    call assert_equal(getcompletion('set completeslash=', 'cmdline')[1], 
'backslash')
+    call assert_equal('backslash', getcompletion('set completeslash=', 
'cmdline')[1])
   endif
   if exists('+cryptmethod')
-    call assert_equal(getcompletion('set cryptmethod=', 'cmdline')[1], 'zip')
+    call assert_equal('zip', getcompletion('set cryptmethod=', 'cmdline')[1])
   endif
   if exists('+cursorlineopt')
-    call assert_equal(getcompletion('set cursorlineopt=', 'cmdline')[1], 
'line')
+    call assert_equal('line', getcompletion('set cursorlineopt=', 
'cmdline')[1])
   endif
-  call assert_equal(getcompletion('set debug=', 'cmdline')[1], 'throw')
-  call assert_equal(getcompletion('set eadirection=', 'cmdline')[1], 'ver')
-  call assert_equal(getcompletion('set fileformat=', 'cmdline')[2], 'mac')
+  call assert_equal('throw', getcompletion('set debug=', 'cmdline')[1])
+  call assert_equal('ver', getcompletion('set eadirection=', 'cmdline')[1])
+  call assert_equal('mac', getcompletion('set fileformat=', 'cmdline')[2])
   if exists('+foldclose')
-    call assert_equal(getcompletion('set foldclose=', 'cmdline')[0], 'all')
+    call assert_equal('all', getcompletion('set foldclose=', 'cmdline')[0])
   endif
   if exists('+foldmethod')
-    call assert_equal(getcompletion('set foldmethod=', 'cmdline')[1], 'expr')
+    call assert_equal('expr', getcompletion('set foldmethod=', 'cmdline')[1])
   endif
   if exists('+foldopen')
-    call assert_equal(getcompletion('set foldopen=', 'cmdline')[1], 'all')
+    call assert_equal('all', getcompletion('set foldopen=', 'cmdline')[1])
   endif
-  call assert_equal(getcompletion('set jumpoptions=', 'cmdline')[0], 'stack')
-  call assert_equal(getcompletion('set keymodel=', 'cmdline')[1], 'stopsel')
-  call assert_equal(getcompletion('set lispoptions=', 'cmdline')[1], 'expr:1')
+  call assert_equal('stack', getcompletion('set jumpoptions=', 'cmdline')[0])
+  call assert_equal('stopsel', getcompletion('set keymodel=', 'cmdline')[1])
+  call assert_equal('expr:1', getcompletion('set lispoptions=', 'cmdline')[1])
   call assert_match('popup', getcompletion('set mousemodel=', 'cmdline')[2])
-  call assert_equal(getcompletion('set nrformats=', 'cmdline')[1], 'bin')
+  call assert_equal('bin', getcompletion('set nrformats=', 'cmdline')[1])
   if exists('+rightleftcmd')
-    call assert_equal(getcompletion('set rightleftcmd=', 'cmdline')[0], 
'search')
+    call assert_equal('search', getcompletion('set rightleftcmd=', 
'cmdline')[0])
   endif
-  call assert_equal(getcompletion('set scrollopt=', 'cmdline')[1], 'ver')
-  call assert_equal(getcompletion('set selection=', 'cmdline')[1], 'exclusive')
-  call assert_equal(getcompletion('set selectmode=', 'cmdline')[1], 'key')
+  call assert_equal('ver', getcompletion('set scrollopt=', 'cmdline')[1])
+  call assert_equal('exclusive', getcompletion('set selection=', 'cmdline')[1])
+  call assert_equal('key', getcompletion('set selectmode=', 'cmdline')[1])
   if exists('+ssop')
-    call assert_equal(getcompletion('set ssop=', 'cmdline')[1], 'buffers')
+    call assert_equal('buffers', getcompletion('set ssop=', 'cmdline')[1])
   endif
-  call assert_equal(getcompletion('set showcmdloc=', 'cmdline')[1], 
'statusline')
+  call assert_equal('statusline', getcompletion('set showcmdloc=', 
'cmdline')[1])
   if exists('+signcolumn')
-    call assert_equal(getcompletion('set signcolumn=', 'cmdline')[1], 'yes')
+    call assert_equal('yes', getcompletion('set signcolumn=', 'cmdline')[1])
   endif
   if exists('+spelloptions')
-    call assert_equal(getcompletion('set spelloptions=', 'cmdline')[0], 
'camel')
+    call assert_equal('camel', getcompletion('set spelloptions=', 
'cmdline')[0])
   endif
   if exists('+spellsuggest')
-    call assert_equal(getcompletion('set spellsuggest+=', 'cmdline')[0], 
'best')
+    call assert_equal('best', getcompletion('set spellsuggest+=', 
'cmdline')[0])
   endif
-  call assert_equal(getcompletion('set splitkeep=', 'cmdline')[1], 'screen')
-  call assert_equal(getcompletion('set swapsync=', 'cmdline')[1], 'sync')
-  call assert_equal(getcompletion('set switchbuf=', 'cmdline')[1], 'usetab')
-  call assert_equal(getcompletion('set tagcase=', 'cmdline')[1], 'ignore')
+  call assert_equal('screen', getcompletion('set splitkeep=', 'cmdline')[1])
+  call assert_equal('sync', getcompletion('set swapsync=', 'cmdline')[1])
+  call assert_equal('usetab', getcompletion('set switchbuf=', 'cmdline')[1])
+  call assert_equal('ignore', getcompletion('set tagcase=', 'cmdline')[1])
   if exists('+termwintype')
-    call assert_equal(getcompletion('set termwintype=', 'cmdline')[1], 
'conpty')
+    call assert_equal('conpty', getcompletion('set termwintype=', 
'cmdline')[1])
   endif
   if exists('+toolbar')
-    call assert_equal(getcompletion('set toolbar=', 'cmdline')[1], 'text')
+    call assert_equal('text', getcompletion('set toolbar=', 'cmdline')[1])
   endif
   if exists('+tbis')
-    call assert_equal(getcompletion('set tbis=', 'cmdline')[2], 'medium')
+    call assert_equal('medium', getcompletion('set tbis=', 'cmdline')[2])
   endif
   if exists('+ttymouse')
     set ttymouse=
-    call assert_equal(getcompletion('set ttymouse=', 'cmdline')[1], 'xterm2')
+    call assert_equal('xterm2', getcompletion('set ttymouse=', 'cmdline')[1])
     set ttymouse&
   endif
-  call assert_equal(getcompletion('set virtualedit=', 'cmdline')[1], 'insert')
-  call assert_equal(getcompletion('set wildmode=', 'cmdline')[1], 'longest')
-  call assert_equal(getcompletion('set wildmode=list,longest:', 'cmdline')[0], 
'full')
-  call assert_equal(getcompletion('set wildoptions=', 'cmdline')[1], 'tagfile')
+  call assert_equal('insert', getcompletion('set virtualedit=', 'cmdline')[1])
+  call assert_equal('longest', getcompletion('set wildmode=', 'cmdline')[1])
+  call assert_equal('full', getcompletion('set wildmode=list,longest:', 
'cmdline')[0])
+  call assert_equal('tagfile', getcompletion('set wildoptions=', 'cmdline')[1])
   if exists('+winaltkeys')
-    call assert_equal(getcompletion('set winaltkeys=', 'cmdline')[1], 'yes')
+    call assert_equal('yes', getcompletion('set winaltkeys=', 'cmdline')[1])
   endif
 
   " Other string options that queries the system rather than fixed enum names
-  call assert_equal(getcompletion('set eventignore=', 'cmdline')[0:1], ['all', 
'BufAdd'])
-  call assert_equal(getcompletion('set fileencodings=', 'cmdline')[1], 
'latin1')
-  call assert_equal(getcompletion('set printoptions=', 'cmdline')[0], 'top')
-  call assert_equal(getcompletion('set wincolor=', 'cmdline')[0], 'SpecialKey')
+  call assert_equal(['all', 'BufAdd'], getcompletion('set eventignore=', 
'cmdline')[0:1])
+  call assert_equal('latin1', getcompletion('set fileencodings=', 
'cmdline')[1])
+  call assert_equal('top', getcompletion('set printoptions=', 'cmdline')[0])
+  call assert_equal('SpecialKey', getcompletion('set wincolor=', 'cmdline')[0])
 
   call assert_equal('eol', getcompletion('set listchars+=', 'cmdline')[0])
   call assert_equal(['multispace', 'leadmultispace'], getcompletion('set 
listchars+=', 'cmdline')[-2:])
@@ -531,33 +531,33 @@ func Test_set_completion_string_values()
   "
 
   " keyprotocol: only auto-complete when after ':' with known protocol types
-  call assert_equal(getcompletion('set keyprotocol=', 'cmdline'), 
[&keyprotocol])
+  call assert_equal([&keyprotocol], getcompletion('set keyprotocol=', 
'cmdline'))
   call feedkeys(":set keyprotocol+=someterm:m\<Tab>\<C-B>\"\<CR>", 'xt')
   call assert_equal('"set keyprotocol+=someterm:mok2', @:)
   set keyprotocol&
 
   " previewpopup / completepopup
-  call assert_equal(getcompletion('set previewpopup=', 'cmdline')[0], 
'height:')
-  call assert_equal(getcompletion('set previewpopup=highlight:End*Buffer', 
'cmdline')[0], 'EndOfBuffer')
+  call assert_equal('height:', getcompletion('set previewpopup=', 
'cmdline')[0])
+  call assert_equal('EndOfBuffer', getcompletion('set 
previewpopup=highlight:End*Buffer', 'cmdline')[0])
   call feedkeys(":set previewpopup+=border:\<Tab>\<C-B>\"\<CR>", 'xt')
   call assert_equal('"set previewpopup+=border:on', @:)
   call feedkeys(":set completepopup=height:10,align:\<Tab>\<C-B>\"\<CR>", 'xt')
   call assert_equal('"set completepopup=height:10,align:item', @:)
-  call assert_equal(getcompletion('set completepopup=bogusname:', 'cmdline'), 
[])
+  call assert_equal([], getcompletion('set completepopup=bogusname:', 
'cmdline'))
   set previewpopup& completepopup&
 
   " diffopt: special handling of algorithm:<alg_list>
-  call assert_equal(getcompletion('set diffopt+=', 'cmdline')[0], 'filler')
-  call assert_equal(getcompletion('set diffopt+=iblank,foldcolumn:', 
'cmdline'), [])
-  call assert_equal(getcompletion('set diffopt+=iblank,algorithm:pat*', 
'cmdline')[0], 'patience')
+  call assert_equal('filler', getcompletion('set diffopt+=', 'cmdline')[0])
+  call assert_equal([], getcompletion('set diffopt+=iblank,foldcolumn:', 
'cmdline'))
+  call assert_equal('patience', getcompletion('set 
diffopt+=iblank,algorithm:pat*', 'cmdline')[0])
 
   " highlight: special parsing, including auto-completing highlight groups
   " after ':'
-  call assert_equal(getcompletion('set hl=', 'cmdline')[0:1], [&hl, '8'])
-  call assert_equal(getcompletion('set hl+=', 'cmdline')[0], '8')
-  call assert_equal(getcompletion('set hl+=8', 'cmdline')[0:2], ['8:', '8b', 
'8i'])
-  call assert_equal(getcompletion('set hl+=8b', 'cmdline')[0], '8bi')
-  call assert_equal(getcompletion('set hl+=8:No*ext', 'cmdline')[0], 'NonText')
+  call assert_equal([&hl, '8'], getcompletion('set hl=', 'cmdline')[0:1])
+  call assert_equal('8', getcompletion('set hl+=', 'cmdline')[0])
+  call assert_equal(['8:', '8b', '8i'], getcompletion('set hl+=8', 
'cmdline')[0:2])
+  call assert_equal('8bi', getcompletion('set hl+=8b', 'cmdline')[0])
+  call assert_equal('NonText', getcompletion('set hl+=8:No*ext', 'cmdline')[0])
   " If all the display modes are used up we should be suggesting nothing. Make
   " a hl typed option with all the modes which will look like '8bi-nrsuc2d=t',
   " and make sure nothing is suggested from that.
@@ -566,7 +566,7 @@ func Test_set_completion_string_values()
         \            {idx, val -> val[1]}),
         \        {idx, val -> val != ':'}),
         \ '')
-  call assert_equal(getcompletion('set hl+=8'..hl_display_modes, 'cmdline'), 
[])
+  call assert_equal([], getcompletion('set hl+=8'..hl_display_modes, 
'cmdline'))
 
   "
   " Test flag lists
@@ -575,16 +575,16 @@ func Test_set_completion_string_values()
   " Test set=. Show the original value if nothing is typed after '='.
   " Otherwise, the list should avoid showing what's already typed.
   set mouse=v
-  call assert_equal(getcompletion('set mouse=', 'cmdline'), 
['v','a','n','i','c','h','r'])
+  call assert_equal(['v','a','n','i','c','h','r'], getcompletion('set mouse=', 
'cmdline'))
   set mouse=nvi
-  call assert_equal(getcompletion('set mouse=', 'cmdline'), 
['nvi','a','n','v','i','c','h','r'])
-  call assert_equal(getcompletion('set mouse=hn', 'cmdline'), 
['a','v','i','c','r'])
+  call assert_equal(['nvi','a','n','v','i','c','h','r'], getcompletion('set 
mouse=', 'cmdline'))
+  call assert_equal(['a','v','i','c','r'], getcompletion('set mouse=hn', 
'cmdline'))
 
   " Test set+=. Never show original value, and it also tries to avoid listing
   " flags that's already in the option value.
-  call assert_equal(getcompletion('set mouse+=', 'cmdline'), ['a','c','h','r'])
-  call assert_equal(getcompletion('set mouse+=hn', 'cmdline'), ['a','c','r'])
-  call assert_equal(getcompletion('set mouse+=acrhn', 'cmdline'), [])
+  call assert_equal(['a','c','h','r'], getcompletion('set mouse+=', 'cmdline'))
+  call assert_equal(['a','c','r'], getcompletion('set mouse+=hn', 'cmdline'))
+  call assert_equal([], getcompletion('set mouse+=acrhn', 'cmdline'))
 
   " Test that the position of the expansion is correct (even if there are
   " additional values after the current cursor)
@@ -595,15 +595,15 @@ func Test_set_completion_string_values()
   " Test that other flag list options have auto-complete, but don't
   " exhaustively validate their results.
   if exists('+concealcursor')
-    call assert_equal(getcompletion('set cocu=', 'cmdline')[0], 'n')
+    call assert_equal('n', getcompletion('set cocu=', 'cmdline')[0])
   endif
-  call assert_equal(getcompletion('set cpo=', 'cmdline')[1], 'a')
-  call assert_equal(getcompletion('set fo=', 'cmdline')[1], 't')
+  call assert_equal('a', getcompletion('set cpo=', 'cmdline')[1])
+  call assert_equal('t', getcompletion('set fo=', 'cmdline')[1])
   if exists('+guioptions')
-    call assert_equal(getcompletion('set go=', 'cmdline')[1], '!')
+    call assert_equal('!', getcompletion('set go=', 'cmdline')[1])
   endif
-  call assert_equal(getcompletion('set shortmess=', 'cmdline')[1], 'r')
-  call assert_equal(getcompletion('set whichwrap=', 'cmdline')[1], 'b')
+  call assert_equal('r', getcompletion('set shortmess=', 'cmdline')[1])
+  call assert_equal('b', getcompletion('set whichwrap=', 'cmdline')[1])
 
   "
   "Test set-=
@@ -611,54 +611,54 @@ func Test_set_completion_string_values()
 
   " Normal single-value option just shows the existing value
   set ambiwidth=double
-  call assert_equal(getcompletion('set ambw-=', 'cmdline'), ['double'])
+  call assert_equal(['double'], getcompletion('set ambw-=', 'cmdline'))
   set ambiwidth&
 
   " Works on numbers and term options as well
-  call assert_equal(getcompletion('set laststatus-=', 'cmdline'), 
[string(&laststatus)])
+  call assert_equal([string(&laststatus)], getcompletion('set laststatus-=', 
'cmdline'))
   set t_Ce=testCe
-  call assert_equal(getcompletion('set t_Ce-=', 'cmdline'), ['testCe'])
+  call assert_equal(['testCe'], getcompletion('set t_Ce-=', 'cmdline'))
   set t_Ce&
 
   " Comma-separated lists should present each option
   set diffopt=context:123,,,,,iblank,iwhiteall
-  call assert_equal(getcompletion('set diffopt-=', 'cmdline'), ['context:123', 
'iblank', 'iwhiteall'])
-  call assert_equal(getcompletion('set diffopt-=*n*', 'cmdline'), 
['context:123', 'iblank'])
-  call assert_equal(getcompletion('set diffopt-=i', 'cmdline'), ['iblank', 
'iwhiteall'])
+  call assert_equal(['context:123', 'iblank', 'iwhiteall'], getcompletion('set 
diffopt-=', 'cmdline'))
+  call assert_equal(['context:123', 'iblank'], getcompletion('set 
diffopt-=*n*', 'cmdline'))
+  call assert_equal(['iblank', 'iwhiteall'], getcompletion('set diffopt-=i', 
'cmdline'))
   " Don't present more than one option as it doesn't make sense in set-=
-  call assert_equal(getcompletion('set diffopt-=iblank,', 'cmdline'), [])
+  call assert_equal([], getcompletion('set diffopt-=iblank,', 'cmdline'))
   " Test empty option
   set diffopt=
-  call assert_equal(getcompletion('set diffopt-=', 'cmdline'), [])
+  call assert_equal([], getcompletion('set diffopt-=', 'cmdline'))
   set diffopt&
 
   " Test escaping output
-  call assert_equal(getcompletion('set fillchars-=', 'cmdline')[0], 'vert:\|')
+  call assert_equal('vert:\|', getcompletion('set fillchars-=', 'cmdline')[0])
 
   " Test files with commas in name are being parsed and escaped properly
   set path=has\\ space,file\,with\,comma,normal_file
   if exists('+completeslash')
-    call assert_equal(getcompletion('set path-=', 'cmdline'), ['has\\ space', 
'file\,with\,comma', 'normal_file'])
+    call assert_equal(['has\\ space', 'file\,with\,comma', 'normal_file'], 
getcompletion('set path-=', 'cmdline'))
   else
-    call assert_equal(getcompletion('set path-=', 'cmdline'), ['has\\ space', 
'file\,with\,comma', 'normal_file'])
+    call assert_equal(['has\\ space', 'file\,with\,comma', 'normal_file'], 
getcompletion('set path-=', 'cmdline'))
   endif
   set path&
 
   " Flag list should present orig value, then individual flags
   set mouse=v
-  call assert_equal(getcompletion('set mouse-=', 'cmdline'), ['v'])
+  call assert_equal(['v'], getcompletion('set mouse-=', 'cmdline'))
   set mouse=avn
-  call assert_equal(getcompletion('set mouse-=', 'cmdline'), 
['avn','a','v','n'])
+  call assert_equal(['avn','a','v','n'], getcompletion('set mouse-=', 
'cmdline'))
   " Don't auto-complete when we have at least one flags already
-  call assert_equal(getcompletion('set mouse-=n', 'cmdline'), [])
+  call assert_equal([], getcompletion('set mouse-=n', 'cmdline'))
   " Test empty option
   set mouse=
-  call assert_equal(getcompletion('set mouse-=', 'cmdline'), [])
+  call assert_equal([], getcompletion('set mouse-=', 'cmdline'))
   set mouse&
 
   " 'whichwrap' is an odd case where it's both flag list and comma-separated
   set ww=b,h
-  call assert_equal(getcompletion('set ww-=', 'cmdline'), ['b','h'])
+  call assert_equal(['b','h'], getcompletion('set ww-=', 'cmdline'))
   set ww&
 endfunc
 
diff --git a/src/version.c b/src/version.c
index 1eb626423..e93ee4194 100644
--- a/src/version.c
+++ b/src/version.c
@@ -704,6 +704,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1973,
 /**/
     1972,
 /**/

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