Failed tests in VS2015

[kant2002]

Please finish fix for tests proposed in #539

[mousetraps]

The particular tests proposed in #539 will probably be removed, not fixed (see #645 which is now tracking this issue.)

We are aware that the tests (not just VS 2015) are failing as per the appveyor results, and I've created a single issue to track those issues (https://ci.appveyor.com/project/mousetraps/nodejstools/branch/master)