proc.c: method by respond_to_missing?

* proc.c (mnew_from_me): method by respond_to_missing? should be
  owned by the original class.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44198 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Sat Dec 14 13:01:45 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* proc.c (mnew_from_me): method by respond_to_missing? should be
+	  owned by the original class.
+
 Sat Dec 14 11:55:31 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* lib/scanf.rb (IO#scanf): fix mistaken use of rescue modifier.

proc.c

@@ -1139,6 +1139,7 @@ mnew_from_me(rb_method_entry_t *me, VALUE defined_class, VALUE klass,
 	if (obj != Qundef && !rb_method_basic_definition_p(klass, rmiss)) {
 	    if (RTEST(rb_funcall(obj, rmiss, 2, sym, scope ? Qfalse : Qtrue))) {
 		me = 0;
+		defined_class = klass;
 
 		goto gen_method;
 	    }

test/ruby/test_method.rb

@@ -189,6 +189,17 @@ class TestMethod < Test::Unit::TestCase
     assert_equal(c, c2.instance_method(:foo).owner)
   end
 
+  def test_owner_missing
+    c = Class.new do
+      def respond_to_missing?(name, bool)
+        name == :foo
+      end
+    end
+    c2 = Class.new(c)
+    assert_equal(c, c.new.method(:foo).owner)
+    assert_equal(c2, c2.new.method(:foo).owner)
+  end
+
   def test_receiver_name_owner
     o = Object.new
     def o.foo; end