* gc.c: add rb_during_gc(). based on a patch from arton <artonx AT
	  yahoo.co.jp> at [ruby-dev:35313].   
	* intern.h: ditto.
	* ext/win32ole/win32ole.c: avoid creating Ruby object during
	  GC. thanks to arton <artonx AT yahoo.co.jp>. [ruby-dev:35313]
	* ext/win32ole/tests: add test_win32ole_event.rb, remove
	  testOLEEVENT.rb
	* ext/win32ole/tests/testWIN32OLE.rb(test_convert_bignum):
	  fix test.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8_6@17924 b2dd03c8-39d4-4d8f-98ff-823fe69b080e