[Coverage][Unittest] Fix stringref issue
authorJinsong Ji <jji@us.ibm.com>
Wed, 24 Feb 2021 14:27:23 +0000 (14:27 +0000)
committerJinsong Ji <jji@us.ibm.com>
Wed, 24 Feb 2021 14:59:40 +0000 (14:59 +0000)
commitff6dc053b7ba8ffb7d02c9c4560fe80b66b117b8
tree81fe2dbfef714fde9b5a88917f1aaaf0994fc5a1
parent9ced8b3b614ceba7dcd4a8fc3d2fc0be7d09f650
[Coverage][Unittest] Fix stringref issue

We will pass StringRef and change it in reader.
But we reuse the same Filename vector without clear it,
so in some systems, we may clobbeer previous results.

Reviewed By: phosek

Differential Revision: https://reviews.llvm.org/D97353
llvm/unittests/ProfileData/CoverageMappingTest.cpp