[InstrProf] Fix darwin errors after r353547
[InstrProf] Fix darwin errors after r353547

The macros were changed but not updated in the Darwin version.

Fail here: http://green.lab.llvm.org/green/job/clang-stage1-configure-RA/53739/

rdar://47925820

git-svn-id: c199f293c43da69278bea8e88f92242bf3aa95f7@353560 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt