Revert r145999.  This turned out to be a bad idea.  Unfortunately, 'id' is used so profusely
in many APIs and large codebases that this made the deprecated warning trigger happy to
the point of not being useful.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150223 91177308-0d34-0410-b5e6-96231b3b80d8
5 files changed