[Perl/perl5] b82b16: Perl_ck_refassign: support refassigning into a sta...

[Richard Leach via perl5-changes]

  Branch: refs/heads/blead
  Home:   https://github.com/Perl/perl5
  Commit: b82b16a38d98ef71e399a80f4e56073741c613cd
      
https://github.com/Perl/perl5/commit/b82b16a38d98ef71e399a80f4e56073741c613cd
  Author: Richard Leach <richardle...@users.noreply.github.com>
  Date:   2023-08-25 (Fri, 25 Aug 2023)

  Changed paths:
    M op.c
    M t/op/lvref.t

  Log Message:
  -----------
  Perl_ck_refassign: support refassigning into a state variable

Prior to this commit, Perl_ck_refassign did not check if the
target was a state variable and, if so, wrap it in a ONCE op
so that the RHS is only evaluated once.