LLVM 7.0.1-rc1 release on Thursday


I'm planning to do the LLVM 7.0.1-rc1 release on Thursday. This is really
just a snapshot release of the current release branch, but It's still
important that it gets testing. You still have until Nov 21 to get
patches into the final release, so you can keep sending me merge

I would also really like to get the gcc/clang abi mismatch bug[1]
fixed for this release. If you have any suggestions for how to fix
it, let me know. We actually need two different fixes, one for trunk
and one for the release_70 branch which is able to maintain the current ABI.


[1] https://bugs.llvm.org/show_bug.cgi?id=39427