compiler-rt: Rename .cc file in lib/tsan/{benchmarks,dd,go} to .cpp

Like r367463, but for tsan/{benchmarks,dd,go}.

The files benchmarks aren't referenced in the build anywhere and where added
in 2012 with the comment "no Makefiles yet".


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@367567 91177308-0d34-0410-b5e6-96231b3b80d8
12 files changed