Updating the build and tests to work with the 2.2.0 runtime.

test/dotnet-test.Tests/GivenDotnetTestBuildsAndRunsTestfromCsproj.cs

@@ -171,7 +171,7 @@ namespace Microsoft.DotNet.Cli.Test.Tests
             var testProjectDirectory = this.CopyAndRestoreVSTestDotNetCoreTestApp("5");
             string configuration = Environment.GetEnvironmentVariable("CONFIGURATION") ?? "Debug";
             string expectedError = Path.Combine(testProjectDirectory, "bin",
-                                   configuration, "netcoreapp2.1", "VSTestCore.dll");
+                                   configuration, "netcoreapp2.2", "VSTestCore.dll");
             expectedError = "The test source file " + "\"" + expectedError + "\"" + " provided was not found.";
 
             // Call test