merge revision(s) 66938: [Backport #15488]

	Fix `Module#const_defined?` on inherited constants

	[Fix GH-2061]

	From: manga_osyo <manga.osyo@gmail.com>

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_6@66939 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 0 insertions, 1 deletions

diff --git a/object.c b/object.c
index 1c0ddfb356..4f844be5a3 100644
--- a/object.c
+++ b/object.c
@@ -2688,7 +2688,6 @@ rb_mod_const_defined(int argc, VALUE *argv, VALUE mod)
 		return Qfalse;
 	    mod = rb_const_get_at(mod, id);
 	}
-	recur = Qfalse;
 
 	if (p < pend && !RB_TYPE_P(mod, T_MODULE) && !RB_TYPE_P(mod, T_CLASS)) {
 	    rb_raise(rb_eTypeError, "%"PRIsVALUE" does not refer to class/module",