Merge pull request dotnet/coreclr#6597 from yizhang82/test-warnings
authorYi Zhang (CLR) <yzha@microsoft.com>
Fri, 5 Aug 2016 00:41:47 +0000 (17:41 -0700)
committerGitHub <noreply@github.com>
Fri, 5 Aug 2016 00:41:47 +0000 (17:41 -0700)
Fix warnings in interop tests

Commit migrated from https://github.com/dotnet/coreclr/commit/400ea0243af9b83d2d506b58effd9cf49176fe23


Trivial merge