vm_eval.c: share with rb_obj_respond_to

* vm_eval.c (check_funcall_respond_to): share the behavior with
  rb_obj_respond_to.  [ruby-core:70460] [Bug #11465]
* vm_method.c (vm_respond_to): extract from rb_obj_respond_to and
  merge r39881.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51646 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 22 insertions, 0 deletions

diff --git a/test/ruby/test_array.rb b/test/ruby/test_array.rb
index 977c14cfa0..ea551dbeba 100644
--- a/test/ruby/test_array.rb
+++ b/test/ruby/test_array.rb
@@ -855,6 +855,28 @@ class TestArray < Test::Unit::TestCase
     assert_match(/reentered/, e.message, '[ruby-dev:34798]')
   end
 
+  def test_flatten_respond_to_missing
+    bug11465 = '[ruby-core:70460] [Bug #11465]'
+
+    obj = Class.new do
+      def respond_to_missing?(method, stuff)
+        return false if method == :to_ary
+        super
+      end
+
+      def method_missing(*args)
+        super
+      end
+    end.new
+
+    ex = nil
+    trace = TracePoint.new(:raise) do |tp|
+      ex = tp.raised_exception
+    end
+    trace.enable {[obj].flatten}
+    assert_nil(ex, bug11465)
+  end
+
   def test_permutation_with_callcc
     need_continuation
     n = 1000