Turn -fixit it back into a mode, but make -fixit-at imply that mode this time
(instead of running it with arbitrary consumers).
 - Also, turn any -fixit-at lookup failure into an error.

llvm-svn: 88757
4 files changed
tree: c23e7bf260b05ab8fd4152e3d970ad6008bd0e7e
  1. clang/
  2. compiler-rt/
  3. llvm/