Tag build swift-DEVELOPMENT-SNAPSHOT-2017-01-23-a
Merge remote-tracking branch 'origin/swift-4.0-branch' into stable

* origin/swift-4.0-branch:
  Add support for the x86_thread_state32_t and in llvm-objdump for Mach-O files add the printing of the x86_thread_state32_t in the same format as otool-classic(1) on darwin.