2009-05-13  Jonathan Wakely  <jwakely.gcc@gmail.com>

	* include/std/mutex: Move std::lock_error to ...
	* src/compatibility.cc: Here.
	* src/mutex.cc: Likewise.
	* testsuite/30_threads/headers/mutex/types_std_c++0x.cc: Add checks
	for lock types and remove std::lock_error check.

From-SVN: r147609