The postderef feature is no longer experimental

As proposed by RJBS.

The "5.24" feature bundle (and therefore C<< use v5.24 >>) now enable
postderef and postderef_qq.

I can't find any precedent for what to do with the relevant experimental::*
warnings category when an experimental feature graduates to acceptance. I
have elected to leave the category in place, so that code doing C<< no
warnings "experimental::postderef" >> will continue to work. This means that
C<< use warnings "experimental::postderef" >> is also accepted, but has no
effect.

1 files changed, 0 insertions, 4 deletions

diff --git a/toke.c b/toke.c
index 71938bd879..763baa5eb0 100644
--- a/toke.c
+++ b/toke.c
@@ -5140,10 +5140,6 @@ Perl_yylex(pTHX)
 		  ||(*s == '*' && (s[1] == '*' || s[1] == '{'))
 		 ))
 		{
-		    Perl_ck_warner_d(aTHX_
-			packWARN(WARN_EXPERIMENTAL__POSTDEREF),
-			"Postfix dereference is experimental"
-		    );
 		    PL_expect = XPOSTDEREF;
 		    TOKEN(ARROW);
 		}