Merge pull request dotnet/coreclr#6546 from pgavlin/LivenessCleanup
authorPat Gavlin <pgavlin@gmail.com>
Mon, 1 Aug 2016 23:44:01 +0000 (16:44 -0700)
committerGitHub <noreply@github.com>
Mon, 1 Aug 2016 23:44:01 +0000 (16:44 -0700)
Refactor fgComputeLife.

Commit migrated from https://github.com/dotnet/coreclr/commit/e5dd7a7518460fbd80f1474c4b79b4c562dfbf2c


Trivial merge