Disabling the VB tests in non-windows platforms while MSBuild fixes a bug that we need for cross-plat.

Author: livarcocc

test/dotnet.Tests/GivenThatICareAboutVBApps.cs

@@ -26,7 +26,8 @@ public GivenThatICareAboutVBApps()
                 .Should().Pass();
         }
 
-        [Fact]
+        // Enable cross-plat once https://github.com/Microsoft/msbuild/issues/422 is fixed
+        [WindowsOnlyFact]
         public void ICanBuildVBApps()
         {
             new BuildCommand()
@@ -35,7 +36,8 @@ public void ICanBuildVBApps()
                 .Should().Pass();
         }
 
-        [Fact]
+        // Enable cross-plat once https://github.com/Microsoft/msbuild/issues/422 is fixed
+        [WindowsOnlyFact]
         public void ICanRunVBApps()
         {
             new RunCommand()
@@ -44,7 +46,8 @@ public void ICanRunVBApps()
                 .Should().Pass();
         }
 
-        [Fact]
+        // Enable cross-plat once https://github.com/Microsoft/msbuild/issues/422 is fixed
+        [WindowsOnlyFact]
         public void ICanPublicAndRunVBApps()
         {
             new PublishCommand()