nobu	2017-12-21 20:59:31 +0900 (Thu, 21 Dec 2017)

  New Revision: 61391

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=61391

  Log:
    test for [Bug #14214]

  Modified files:
    trunk/test/ruby/test_optimization.rb
Index: test/ruby/test_optimization.rb
===================================================================
--- test/ruby/test_optimization.rb	(revision 61390)
+++ test/ruby/test_optimization.rb	(revision 61391)
@@ -708,4 +708,14 @@ class TestRubyOptimization < Test::Unit: https://github.com/ruby/ruby/blob/trunk/test/ruby/test_optimization.rb#L708
     eval("{**(bug = nil; {})};42")
     assert_nil(bug)
   end
+
+  def test_overwritten_blockparam
+    obj = Object.new
+    def obj.a(&block)
+      block = 1
+      return :ok if block
+      :ng
+    end
+    assert_equal(:ok, obj.a())
+  end
 end

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