move cleanup function to thread_start_func_2().
* thread.c, thread_pthread.ci, thread_win32.ci:
add more destruct functions.
(native_thread_destroy() and native_mutex_destroy())
* thread_pthread.ci, thread_pthread.h: make native_mutex_* functions
(check error, etc), it's not macro any more.
* thread_win32.ci (thread_start_func_1): store some values before
running thread (to release these after running thread).
* thread_win32.ci (native_thread_create): fix spaces.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@11671 b2dd03c8-39d4-4d8f-98ff-823fe69b080e