Jordan Rose 972f087dbb Allow modifying an ImmutableMap without canonicalizing it immediately.
This is an alternative to the ImmutableMapRef interface where a factory
should still be canonicalizing by default, but in certain cases an
improvement can be made by delaying the canonicalization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169532 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06 19:01:24 +00:00
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2012-12-05 20:12:13 +00:00
2012-12-06 07:38:10 +00:00
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