[VS Addin] Disable PNaCl adding tests until newer SDK is available

visual_studio/NativeClientVSAddIn/NaCl.Build.CPPTasks/NaClLink.cs

Index: visual_studio/NativeClientVSAddIn/NaCl.Build.CPPTasks/NaClLink.cs
diff --git a/visual_studio/NativeClientVSAddIn/NaCl.Build.CPPTasks/NaClLink.cs b/visual_studio/NativeClientVSAddIn/NaCl.Build.CPPTasks/NaClLink.cs
index 9bb5f067a73ad6cfcd3952c4ab991f05332693c2..c623a931121318ec0e6ea81290c83aec2d678d5f 100644
--- a/visual_studio/NativeClientVSAddIn/NaCl.Build.CPPTasks/NaClLink.cs
+++ b/visual_studio/NativeClientVSAddIn/NaCl.Build.CPPTasks/NaClLink.cs
@@ -169,7 +169,7 @@ namespace NaCl.Build.CPPTasks
         {
             if (Platform.Equals("pnacl", StringComparison.OrdinalIgnoreCase))
             {
-                if (!GCCUtilities.FindPython())
+                if (!SDKUtilities.FindPython())
                 {
                     Log.LogError("PNaCl linking requires python in your executable path.");
                     return false;