Implement "-include-pth" in low-level driver. This allows a PTH file to be used
similar to a regular file passed to "-include". When -include-pth is used, the
low-level driver queries the PTH file for the name of the original source file
that generated the PTH file and implicitly adds a '#include' for that file in
the Predefines buffer.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67352 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed