Merge pull request dotnet/coreclr#3389 from pgavlin/AllocatorRefactor
authorPat Gavlin <pgavlin@gmail.com>
Mon, 29 Feb 2016 19:33:15 +0000 (11:33 -0800)
committerPat Gavlin <pgavlin@gmail.com>
Mon, 29 Feb 2016 19:33:15 +0000 (11:33 -0800)
Refactor the pooled ArenaAllocator.

Commit migrated from https://github.com/dotnet/coreclr/commit/156971c8b4fe09797e8e9bf480fa1cc302ff679a


Trivial merge