Only call TryAnnotateScopeToken when parsing C++.
 - This improves -parse-noop of Carbon.h by +2%, and I believe
   compensates for the majority of the performance regression in r58913.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60063 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed