* k5-thread.h (K5_MUTEX_DEBUG_INITIALIZER): Use current file and line.

* k5-thread.h (K5_MUTEX_DEBUG_INITIALIZER): Use current file and line.
(k5_mutex_debug_finish_init, k5_mutex_debug_init, k5_mutex_debug_destroy): Save
current file and line.
(k5_mutex_debug_lock): Verify that the lock was unlocked before, and set the
state to locked.
(k5_mutex_debug_unlock): Verify that the mutex was locked before, and set the
state to unlocked.
(k5_debug_assert_locked, k5_debug_assert_unlocked): Use
k5_mutex_debug_check_init instead of checking initialized==1.

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@16535 dc483132-0cff-0310-8789-dd5450dbe970