[PATCH 1 of 4] Win32: fixed 64-bit compilation with MSVC after 9333:1996ea0bc55d

[Maxim Dounin]

# HG changeset patch
# User Maxim Dounin <mdou...@mdounin.ru>
# Date 1748666354 -10800
#      Sat May 31 07:39:14 2025 +0300
# Node ID 9228d497cb38bd5fda2177380c3eee372a3ddbfd
# Parent  d1edde45c5f14fbe5e820a6f3a861c086f3626c5
Win32: fixed 64-bit compilation with MSVC after 9333:1996ea0bc55d.

Compatibility with zlib in LIT_MEM mode added in 9333:1996ea0bc55d triggered
MSVC warning C4334 (result of 32-bit shift implicitly converted to 64 bits),
fixed by adding explicit conversion.

diff --git a/src/http/modules/ngx_http_gzip_filter_module.c 
b/src/http/modules/ngx_http_gzip_filter_module.c
--- a/src/http/modules/ngx_http_gzip_filter_module.c
+++ b/src/http/modules/ngx_http_gzip_filter_module.c
@@ -520,7 +520,7 @@ ngx_http_gzip_filter_memory(ngx_http_req
              * buffer for literals/lengths.
              */
 
-            ctx->allocated += (1 << (memlevel + 6));
+            ctx->allocated += ((ngx_uint_t) 1 << (memlevel + 6));
             ctx->zlib_lit_mem = 1;
         }