Patch: inline posix mutex code

[Anthony Green]

I wrote:
>	* posix-threads.cc (_Jv_MutexLock): Moved back to posix-threads.h.
> 	(_Jv_MutexUnlock): Ditto.
> 	* include/posix-threads.h (_Jv_MutexLock): From posix-threads.cc.
> 	(_Jv_MutexUnlock): Ditto.

There was a botch in here that prevented libgcj from building.  I
don't know why my test build didn't catch it.  I've committed a
quick fix for tonight.   Requires more thought.

AG

-- 
Anthony Green                                                        Red Hat
                                                       Sunnyvale, California