[VS Addin] Disable PPAPI linking test except on VS2012

The pre-compiled libraries (specifically ppapi_cpp.lib)
that we ship are only compiled with VS2012 so this test
will fail on 2010 due to library incompatability.  These
tests used to pass with pepper_36 since at that point
the SDK builders were still using 2010.

BUG=
R=binji@chromium.org

Review URL: https://codereview.chromium.org/860173003

git-svn-id: https://nativeclient-sdk.googlecode.com/svn/trunk/src@1581 050acbb0-2703-11df-ab0a-9f3f633ae91d
diff --git a/UnitTests/CompileTest.cs b/UnitTests/CompileTest.cs
index 629ce3e..3b7d03d 100644
--- a/UnitTests/CompileTest.cs
+++ b/UnitTests/CompileTest.cs
@@ -61,6 +61,14 @@
         [TestMethod]
         public void CheckPepperCompile()
         {
+            if (!TestUtilities.IsVS2012())
+            {
+                // The pre-compiled libraries in the SDK (specifically
+                // ppapi_cpp.lib) are not linkable except with 2012 so
+                // this test will always fail with link errors under 2010
+                // or any other Visual Studio version.
+                Assert.Inconclusive();
+            }
             CheckCompile(Strings.PepperPlatformName);
         }