Make the '==' operator inline.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184375 91177308-0d34-0410-b5e6-96231b3b80d8
This is now a duplicate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184376 91177308-0d34-0410-b5e6-96231b3b80d8