[NaCl SDK Addin] Fix detection of PNaCl toolchain.

visual_studio/NativeClientVSAddIn/UnitTests/CompileTest.cs

Index: visual_studio/NativeClientVSAddIn/UnitTests/CompileTest.cs
diff --git a/visual_studio/NativeClientVSAddIn/UnitTests/CompileTest.cs b/visual_studio/NativeClientVSAddIn/UnitTests/CompileTest.cs
index e63c766f338022914d75bc1cab75ad03f6e283a4..bf00ee00d8504af6cf0d1a67d5d9e5d17bed0919 100644
--- a/visual_studio/NativeClientVSAddIn/UnitTests/CompileTest.cs
+++ b/visual_studio/NativeClientVSAddIn/UnitTests/CompileTest.cs
@@ -153,10 +153,8 @@ namespace UnitTests
         [TestMethod]
         public void CheckPNaClCompile()
         {
-            int revision;
             string root = System.Environment.GetEnvironmentVariable("NACL_SDK_ROOT");
-            SDKUtilities.GetSDKVersion(root, out revision);
-            if (revision < SDKUtilities.MinPNaCLSDKVersion)
+            if (!SDKUtilities.SupportsPNaCl(root))
             {
                 Assert.Inconclusive();
             }