This patch addresses the bogus "Invocation mismatch" messages seen in parallel profiledbootstrap builds of gcc.

This patch addresses the bogus "Invocation mismatch" messages seen in parallel
profiledbootstrap builds of gcc. See PR bootstrap/55051 for a discussion of
why this is occurring and why this checking is inaccurate. Leave it in when
!GCOV_LOCKED, to warn about concurrent update issues requiring locking.

2012-11-18  Teresa Johnson  <tejohnson@google.com>

	PR bootstrap/55051
	* libgcov.c (gcov_exit): Remove merged program summary
	comparison unless !GCOV_LOCKED.

From-SVN: r193612