2010-05-13 Ivan Maidanski <ivmai@mail.ru> (mostly really Uros Bizjak)

2010-05-13  Ivan Maidanski <ivmai@mail.ru> (mostly really Uros Bizjak)

	* tests/leak_test.c (main): Explicitly define as returning int
	(to prevent a spurious test failure on some Linux/alpha targets).
	* tests/thread_leak_test.c (main): Ditto.
	* tests/thread_leak_test.c: Initialize GC_find_leak in the main
	thread (before GC_INIT) only.
	* tests/leak_test.c (main): Use GC_set_find_leak() instead of
	accessing GC_find_leak directly.
	* tests/thread_leak_test.c (main): Ditto.