If specified, when preprocessing, the contents of imported .pcm files will be
included in preprocessed output. The resulting preprocessed file can then be
compiled standalone without the module sources or .pcm files.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@305116 91177308-0d34-0410-b5e6-96231b3b80d8