when running in -E mode on multiple files, there is no reason to accumulate 
fileid's and macroid's across files.  Clearing between files keeps the tables
smaller and slightly speeds up compilation.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@40383 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed