proc.c: fix inherited method owner

* proc.c (mnew_from_me): keep iclass as-is, to make inheritance
  chain consistent.  [ruby-core:59358] [Bug #9315]

* proc.c (method_owner): return the original defined_class from
  prepended iclass, instead.

* vm_insnhelper.c (vm_search_super_method): revert r44455, no
  longer defined_class becomes a module.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44458 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 8 insertions, 5 deletions

diff --git a/proc.c b/proc.c
index 1b61d71ac1..8519dfdaaa 100644
--- a/proc.c
+++ b/proc.c
@@ -1224,10 +1224,6 @@ mnew_from_me(rb_method_entry_t *me, VALUE defined_class, VALUE klass,
 	goto again;
     }
 
-    if (RB_TYPE_P(defined_class, T_ICLASS)) {
-	defined_class = RBASIC_CLASS(defined_class);
-    }
-
     klass = defined_class;
 
     while (rclass != klass &&
@@ -1449,9 +1445,16 @@ static VALUE
 method_owner(VALUE obj)
 {
     struct METHOD *data;
+    VALUE defined_class;
 
     TypedData_Get_Struct(obj, struct METHOD, &method_data_type, data);
-    return data->defined_class;
+    defined_class = data->defined_class;
+
+    if (RB_TYPE_P(defined_class, T_ICLASS)) {
+	defined_class = RBASIC_CLASS(defined_class);
+    }
+
+    return defined_class;
 }
 
 void