[VS Addin] Test result parser now handles inconclusive results.

Inconclusive results are the MS unit tests way of signalling
that a test was skipped.  We don't want to treat these tests
as failures on the bots.

This change also cleans up the output of check_test_results.

BUG=

Review URL: https://codereview.chromium.org/11366011

git-svn-id: https://nativeclient-sdk.googlecode.com/svn/trunk/src@1461 050acbb0-2703-11df-ab0a-9f3f633ae91d
1 file changed