ex-PVBM and mro interact badly

Message-ID: <20071015215616.GA43800@osiris.mauzo.dyndns.org>

p4raw-id: //depot/perl@32119

1 files changed, 10 insertions, 1 deletions

diff --git a/t/op/hash.t b/t/op/hash.t
index 6e1b4daa4b..9bde518732 100644
--- a/t/op/hash.t
+++ b/t/op/hash.t
@@ -8,7 +8,7 @@ BEGIN {
 
 use strict;
 
-plan tests => 5;
+plan tests => 6;
 
 my %h;
 
@@ -109,3 +109,12 @@ sub hash {
     $u += $u << 15; $u %= MASK_U32;
     $u;
 }
+
+# This will crash perl if it fails
+
+use constant PVBM => 'foo';
+
+my $dummy = index 'foo', PVBM;
+eval { my %h = (a => PVBM); 1 };
+
+ok (!$@, 'fbm scalar can be inserted into a hash');