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+Thu Jul 30 11:53:54 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* thread.c (rb_thread_s_handle_interrupt): make identical hash,
+	  to compare masking classes just by their IDs.
+
 Thu Jul 30 11:52:55 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* load.c (rb_load_internal0): stop separating exits at loading