ccc: Allow internal tool chain specific argument translation.
 - Pulled -Xarch processing into this.

 - Get rid of manual creation of forwarding arg array.

 - Use Darwin/CC1 instead of generic GCC cc1 on X86.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62172 91177308-0d34-0410-b5e6-96231b3b80d8
5 files changed