Merge pull request #43783 from sharwell/test-timeout

Add a hang mitigating timeout to CSharpBuild.BuildWithCommandLine

src/VisualStudio/IntegrationTest/IntegrationTests/CSharp/CSharpBuild.cs

@@ -62,7 +62,7 @@ public void BuildWithCommandLine()
             var commandLine = $"\"{pathToSolution}\" /Rebuild Debug /Out \"{logFileName}\" {VisualStudioInstanceFactory.VsLaunchArgs}";
 
             var process = Process.Start(pathToDevenv, commandLine);
-            process.WaitForExit();
+            Assert.True(process.WaitForExit((int)Helper.HangMitigatingTimeout.TotalMilliseconds));
 
             Assert.Contains("Rebuild All: 1 succeeded, 0 failed, 0 skipped", File.ReadAllText(logFileName));