Chandler Carruth f3c718e49b Cleaup ValueHandle to no longer keep a PointerIntPair for the Value*.
This was used previously for metadata but is no longer needed there. Not
doing this simplifies ValueHandle and will make it easier to fix things
like AssertingVH's DenseMapInfo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225487 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-09 00:48:47 +00:00
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