Revert r35622.

It breaks bootstraptest/test_exception.rb:388.

"* thread.c (rb_threadptr_execute_interrupts_common): th->errinfo is"

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35623 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,11 +1,3 @@
-Fri May 11 22:54:22 2012  NARUSE, Yui  <naruse@ruby-lang.org>
-
-	* thread.c (rb_threadptr_execute_interrupts_common): th->errinfo is
-	  not Fixnum, but exception object.
-	  This causes test_signal_requiring of test/ruby/test_signal.rb fail
-	  if the sub process is killed on waiting IO in lex_io_gets in require
-	  itself, not sleep.
-
 Fri May 11 14:23:11 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* parse.y (primary): begin/end block should be isolated from outside.

test/ruby/test_signal.rb

@@ -212,7 +212,7 @@ th = Thread.new do
     STDOUT.flush
   end
 end
-Thread.pass until th.stop? # this may stop inside lex_io_gets
+Thread.pass while th.running?
 Process.kill(:INT, $$)
 th.join
 EOS

thread.c

@@ -1300,7 +1300,7 @@ rb_threadptr_execute_interrupts_common(rb_thread_t *th)
 	    thread_debug("rb_thread_execute_interrupts: %"PRIdVALUE"\n", err);
 
 	    if (err == eKillSignal || err == eTerminateSignal) {
-		th->errinfo = rb_exc_new2(rb_eInterrupt, "");
+		th->errinfo = INT2FIX(TAG_FATAL);
 		TH_JUMP_TAG(th, TAG_FATAL);
 	    }
 	    else {