[llvm-cov] Fix more -path-equivalence test bugs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317764 91177308-0d34-0410-b5e6-96231b3b80d8
(cherry picked from commit cd8823fb873de3b212defd2ba23690c9c36cb045)

 Conflicts:
	test/tools/llvm-cov/deferred-region.cpp
3 files changed