Update StyleCopTester to the new Microsoft.CodeAnalysis.Workspaces.MSBuild

Author: sharwell

NuGet.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <packageSources>
+    <add key="dotnet.myget.org roslyn" value="https://dotnet.myget.org/F/roslyn/api/v3/index.json" />
+  </packageSources>
+</configuration>

StyleCop.Analyzers/StyleCopTester/App.config

@@ -15,6 +15,7 @@ namespace StyleCopTester
     using System.Threading;
     using System.Threading.Tasks;
     using System.Windows.Threading;
+    using Microsoft.Build.Locator;
     using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.CodeActions;
     using Microsoft.CodeAnalysis.CodeFixes;
@@ -85,6 +86,8 @@ private static async Task MainAsync(string[] args, CancellationToken cancellatio
                     }
                 }
 
+                MSBuildLocator.RegisterDefaults();
+
                 Stopwatch stopwatch = Stopwatch.StartNew();
                 var analyzers = GetAllAnalyzers();
 
@@ -96,9 +99,17 @@ private static async Task MainAsync(string[] args, CancellationToken cancellatio
                     return;
                 }
 
+                var properties = new Dictionary<string, string>
+                {
+                    // This property ensures that XAML files will be compiled in the current AppDomain
+                    // rather than a separate one. Any tasks isolated in AppDomains or tasks that create
+                    // AppDomains will likely not work due to https://github.com/Microsoft/MSBuildLocator/issues/16.
+                    { "AlwaysCompileMarkupFilesInSeparateDomain", bool.FalseString },
+                };
+
                 MSBuildWorkspace workspace = MSBuildWorkspace.Create();
                 string solutionPath = args.SingleOrDefault(i => !i.StartsWith("/", StringComparison.Ordinal));
-                Solution solution = await workspace.OpenSolutionAsync(solutionPath, cancellationToken).ConfigureAwait(false);
+                Solution solution = await workspace.OpenSolutionAsync(solutionPath, cancellationToken: cancellationToken).ConfigureAwait(false);
 
                 Console.WriteLine($"Loaded solution in {stopwatch.ElapsedMilliseconds}ms");
 

StyleCop.Analyzers/StyleCopTester/Program.cs

@@ -5,21 +5,13 @@
       "commandLineArgs": "..\\..\\StyleCopAnalyzers.sln /stats",
       "workingDirectory": "$(MSBuildProjectDirectory)",
       "environmentVariables": {
-        "MSBuildSDKsPath": "$(MSBuildSDKsPath)",
-        "MSBuildExtensionsPath": "$(MSBuildExtensionsPath)",
-        "VisualStudioVersion": "$(VisualStudioVersion)",
-        "VSINSTALLDIR": "$(VSAPPIDDIR)\\..\\..\\"
       }
     },
     "StyleCopAnalyzers.sln /stats /editperf": {
       "commandName": "Project",
       "commandLineArgs": "..\\..\\StyleCopAnalyzers.sln /stats /editperf",
       "workingDirectory": "$(MSBuildProjectDirectory)",
       "environmentVariables": {
-        "MSBuildSDKsPath": "$(MSBuildSDKsPath)",
-        "MSBuildExtensionsPath": "$(MSBuildExtensionsPath)",
-        "VisualStudioVersion": "$(VisualStudioVersion)",
-        "VSINSTALLDIR": "$(VSAPPIDDIR)\\..\\..\\"
       }
     }
   }

StyleCop.Analyzers/StyleCopTester/Properties/launchSettings.json

@@ -23,19 +23,16 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Build" Version="15.3.409" />
-    <PackageReference Include="Microsoft.Build.Framework" Version="15.3.409" />
-    <PackageReference Include="Microsoft.Build.Tasks.Core" Version="15.3.409" />
-    <PackageReference Include="Microsoft.CodeAnalysis" Version="1.2.1" />
+    <PackageReference Include="Microsoft.Build.Locator" Version="1.0.13" />
+    <PackageReference Include="Microsoft.CodeAnalysis.Common" Version="	2.9.0-beta4-62830-01" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="	2.9.0-beta4-62830-01" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="	2.9.0-beta4-62830-01" />
+    <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.MSBuild" Version="	2.9.0-beta4-62830-01" />
   </ItemGroup>
 
   <ItemGroup>
     <ProjectReference Include="..\StyleCop.Analyzers.CodeFixes\StyleCop.Analyzers.CodeFixes.csproj" />
     <ProjectReference Include="..\StyleCop.Analyzers\StyleCop.Analyzers.csproj" />
   </ItemGroup>
 
-  <ItemGroup>
-    <None Include="App.config" />
-  </ItemGroup>
-
 </Project>