If a token doesn't need cleaning, we can get its first character
without having to get the whole token.  This speeds up -E on 
447.dealII by 1.8%


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@40420 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed