[Perl/perl5] dcc4b6: perlhacktips: C99, but not array designators nor c...

[Tony Cook via perl5-changes]

  Branch: refs/heads/blead
  Home:   https://github.com/Perl/perl5
  Commit: dcc4b625fb9453bcd3aa81e4f27d5e30a4d009e0
      
https://github.com/Perl/perl5/commit/dcc4b625fb9453bcd3aa81e4f27d5e30a4d009e0
  Author: Tony Cook <t...@develop-help.com>
  Date:   2023-07-04 (Tue, 04 Jul 2023)

  Changed paths:
    M pod/perlhacktips.pod

  Log Message:
  -----------
  perlhacktips: C99, but not array designators nor compound literals

The second came up while trying to get perl to build as C++ in
MSVC 2022.

Addresses #21073 (but isn't a fix)