Provide a way to disable auto-generation of preprocessed files during clang 
crash.  This can speedup the process of generating a delta reduced test case.
rdar://10905465


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151109 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed