Add a test to test building with devenv /build

Fixes https://github.com/dotnet/roslyn/issues/16865

src/EditorFeatures/TestUtilities/Traits.cs

@@ -22,6 +22,7 @@ public static class Features
             public const string BlockCommentEditing = nameof(BlockCommentEditing);
             public const string BraceHighlighting = nameof(BraceHighlighting);
             public const string BraceMatching = nameof(BraceMatching);
+            public const string Build = nameof(Build);
             public const string CallHierarchy = nameof(CallHierarchy);
             public const string CaseCorrection = nameof(CaseCorrection);
             public const string ChangeSignature = nameof(ChangeSignature);

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

 // Copyright (c) Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
 
 using System;
+using System.Diagnostics;
+using System.IO;
 using Microsoft.CodeAnalysis;
 using Microsoft.VisualStudio.IntegrationTest.Utilities;
+using Roslyn.Test.Utilities;
 using Xunit;
 
 namespace Roslyn.VisualStudio.IntegrationTests.CSharp
@@ -17,7 +20,7 @@ public CSharpBuild(VisualStudioInstanceFactory instanceFactory)
             VisualStudio.Instance.SolutionExplorer.AddProject("TestProj", WellKnownProjectTemplates.ConsoleApplication, LanguageNames.CSharp);
         }
 
-        [Fact]
+        [Fact, Trait(Traits.Feature, Traits.Features.Build)]
         public void BuildProject()
         {
             var editorText = @"using System;
@@ -35,5 +38,25 @@ static void Main(string[] args)
             // TODO: Validate build works as expected
         }
 
+        [Fact, Trait(Traits.Feature, Traits.Features.Build)]
+        public void BuildWithCommandLine()
+        {
+            VisualStudio.Instance.SolutionExplorer.SaveAll();
+
+            var pathToDevenv = Path.Combine(VisualStudio.Instance.InstallationPath, @"Common7\IDE\devenv.exe");
+            var pathToSolution = VisualStudio.Instance.SolutionExplorer.SolutionFileFullPath;
+            var logFileName = pathToSolution + ".log";
+
+            File.Delete(logFileName);
+
+            var commandLine = $"\"{pathToSolution}\" /Rebuild Debug /Out \"{logFileName}\" {VisualStudioInstanceFactory.VsLaunchArgs}";
+
+            var process = Process.Start(pathToDevenv, commandLine);
+            process.WaitForExit();
+
+            Assert.Equal(0, process.ExitCode);
+
+            Assert.Contains("Rebuild All: 1 succeeded, 0 failed, 0 skipped", File.ReadAllText(logFileName));
+        }
     }
 }

src/VisualStudio/IntegrationTest/IntegrationTests/VisualBasic/BasicBuild.cs

@@ -2,6 +2,7 @@
 
 using Microsoft.CodeAnalysis;
 using Microsoft.VisualStudio.IntegrationTest.Utilities;
+using Roslyn.Test.Utilities;
 using Xunit;
 
 namespace Roslyn.VisualStudio.IntegrationTests.VisualBasic
@@ -16,7 +17,7 @@ public BasicBuild(VisualStudioInstanceFactory instanceFactory)
             VisualStudio.Instance.SolutionExplorer.AddProject("TestProj", WellKnownProjectTemplates.ConsoleApplication, LanguageNames.VisualBasic);
         }
 
-        [Fact]
+        [Fact, Trait(Traits.Feature, Traits.Features.Build)]
         public void BuildProject()
         {
             var editorText = @"Module Program