* win32-threads.cc: (ensure_interrupt_event_initialized) New

	* win32-threads.cc: (ensure_interrupt_event_initialized) New
	function for lazy initialization of an auto-reset event.
	(_Jv_CondWait) Added thread interrupt support.
	(_Jv_ThreadInitData) Added initialization of interrupt support
	members.
	(_Jv_ThreadDestroyData) Added cleanup of interrupt support members.
	(_Jv_ThreadStart) Removed unused code.
	(_Jv_Win32GetInterruptEvent) New method for returning interrupt event
	to an external caller.
	(_Jv_ThreadInterrupt) Implemented.
	* include/win32-threads.h: (_Jv_Thread_t) Added a Win32 auto-reset
	event for interrupt support as well as a mutex which regulates
	access to this.
	(_Jv_Win32GetInterruptEvent) Declared new method for returning interrupt
	event to an external caller.
	* java/lang/natWin32Process.cc: (cleanup) Close handle to spawned
	process.
	(waitFor) Added interrupt support.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@71562 138bc75d-0d04-0410-961f-82ee72b054a4