[driver crash diagnostics] A few enhancements:
 -Strip -iquote and -M options.
 -Quote -D options to avoid problems with command line macros that include
  parens.
rdar://11949066

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160743 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed