Remove some more code out into a separate CL.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211067 91177308-0d34-0410-b5e6-96231b3b80d8
Remove some code churn.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211068 91177308-0d34-0410-b5e6-96231b3b80d8
Kill the LLVM global lock.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211069 91177308-0d34-0410-b5e6-96231b3b80d8
Programmer's Manual changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211070 91177308-0d34-0410-b5e6-96231b3b80d8