eval.c: check type

* eval.c (ignored_block): check argument type, which must be
  Module.  [ruby-dev:50270] [Bug #13956]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60077 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/eval.c b/eval.c
index f5896f6fba..00b5156c86 100644
--- a/eval.c
+++ b/eval.c
@@ -1482,6 +1482,7 @@ static void
 ignored_block(VALUE module, const char *klass)
 {
     const char *anon = "";
+    Check_Type(module, T_MODULE);
     if (!RTEST(rb_search_class_path(module))) {
 	anon = ", maybe for Module.new";
     }