Make defined(${'$'}) return true

Commit 0e219455 made $$ into a magical variable that is not created
on startup.

Usually perl pretends that built-in vars created on the fly have
always existed.  But commit 0e219455 did not add $$ to the list of
such variables in is_gv_magical_sv.  So defined ${'$'} started return-
ing false.

1 files changed, 1 insertions, 0 deletions

diff --git a/gv.c b/gv.c
index c9b5de3c46..874c3dc60d 100644
--- a/gv.c
+++ b/gv.c
@@ -2771,6 +2771,7 @@ Perl_is_gv_magical_sv(pTHX_ SV *const name_sv, U32 flags)
 	case '>':
 	case '\\':
 	case '/':
+	case '$':
 	case '|':
 	case '+':
 	case ';':