compiler-rt: Rename .cc file in lib/tsan/tests/{rtl,unit} to .cpp

Like r367463, but for tsan/tests/{rtl,unit}.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@367566 91177308-0d34-0410-b5e6-96231b3b80d8
22 files changed