Added known bug from ruby-core:14537

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14869 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

bootstraptest/test_knownbug.rb

@@ -3,4 +3,13 @@
 # So all tests will cause failure.
 #
 
+assert_equal 'ok', %q{
+  class X < RuntimeError;end
+  x = [X]
+  begin
+   raise X
+  rescue *x
+   :ok
+  end
+}, '[ruby-core:14537]'