merge revision(s) 50430,50440: [Backport #11117]

	* vm_eval.c (rb_method_call_status): undefined refined method is
	  not callable unless using.  [ruby-core:69064] [Bug #11117]

	* vm_eval.c (rb_method_call_status): resolve refined method entry
	  to check if undefined.  [ruby-core:69064] [Bug #11117]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@51119 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 5 insertions, 0 deletions

diff --git a/vm_eval.c b/vm_eval.c
index da6338419f..5abd8a518d 100644
--- a/vm_eval.c
+++ b/vm_eval.c
@@ -533,8 +533,13 @@ rb_method_call_status(rb_thread_t *th, const rb_method_entry_t *me, call_type sc
     int noex;
 
     if (UNDEFINED_METHOD_ENTRY_P(me)) {
+      undefined:
 	return scope == CALL_VCALL ? NOEX_VCALL : 0;
     }
+    if (me->def->type == VM_METHOD_TYPE_REFINED) {
+	me = rb_resolve_refined_method(Qnil, me, NULL);
+	if (UNDEFINED_METHOD_ENTRY_P(me)) goto undefined;
+    }
     klass = me->klass;
     oid = me->def->original_id;
     noex = me->flag;