Merge pull request dotnet/coreclr#6726 from rahku/fixes
authorRahul Kumar <rahku@microsoft.com>
Sat, 13 Aug 2016 06:08:18 +0000 (23:08 -0700)
committerGitHub <noreply@github.com>
Sat, 13 Aug 2016 06:08:18 +0000 (23:08 -0700)
In intGCShadow() first reserve memory before committing

Commit migrated from https://github.com/dotnet/coreclr/commit/68c2b8f773767032c9525d105ff7ba90a7c23dad


Trivial merge