Add -o support for TableGen

I figure that misha has done a lot of things on my todo list, the least I
can do is reciprocate a bit.  :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6571 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed