Move super cache into mro meta

Iterated hashes shouldn’t have to allocate space for something
specific to stashes, so move the SUPER method cache from the
HvAUX struct (which all iterated hashes have) into the mro
meta struct (which only stashes have).

1 files changed, 2 insertions, 0 deletions

diff --git a/mro.c b/mro.c
index cb679503a4..2ce9fa2da3 100644
--- a/mro.c
+++ b/mro.c
@@ -186,6 +186,8 @@ Perl_mro_meta_dup(pTHX_ struct mro_meta* smeta, CLONE_PARAMS* param)
 	newmeta->isa
 	    = MUTABLE_HV(sv_dup_inc((const SV *)newmeta->isa, param));
 
+    newmeta->super = NULL;
+
     return newmeta;
 }