vm_insnhelper.c: revive r44455 for bound module method

* vm_insnhelper.c (vm_search_super_method): when super called in a
  bound UnboundMethod generated from a module, no superclass is
  found since the current defined class is the module, then call
  method_missing in that case.  [ruby-core:59619] [Bug #9377]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44527 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 6 insertions, 0 deletions

diff --git a/vm_insnhelper.c b/vm_insnhelper.c
index c8cbaa07bf..eb3ba37623 100644
--- a/vm_insnhelper.c
+++ b/vm_insnhelper.c
@@ -2024,6 +2024,12 @@ vm_search_super_method(rb_thread_t *th, rb_control_frame_t *reg_cfp, rb_call_inf
 		 " by define_method() is not supported."
 		 " Specify all arguments explicitly.");
     }
+    if (!ci->klass) {
+	/* bound instance method of module */
+	ci->aux.missing_reason = NOEX_SUPER;
+	CI_SET_FASTPATH(ci, vm_call_method_missing, 1);
+	return;
+    }
 
     /* TODO: use inline cache */
     ci->me = rb_method_entry(ci->klass, ci->mid, &ci->defined_class);