Make methods synchronous

src/EditorFeatures/Test/Diagnostics/DiagnosticsSquiggleTaggerProviderTests.cs

@@ -36,7 +36,7 @@ public async Task Test_TagSourceDiffer()
                 { LanguageNames.CSharp, new DiagnosticAnalyzer[] { analyzer } }
             };
 
-            using (var workspace = await TestWorkspace.CreateCSharpAsync(new string[] { "class A { }", "class E { }" }, CSharpParseOptions.Default))
+            using (var workspace = TestWorkspace.CreateCSharp(new string[] { "class A { }", "class E { }" }, CSharpParseOptions.Default))
             using (var wrapper = new DiagnosticTaggerWrapper<IErrorTag>(workspace, analyzerMap))
             {
                 var tagger = wrapper.TaggerProvider.CreateTagger<IErrorTag>(workspace.Documents.First().GetTextBuffer());
@@ -68,7 +68,7 @@ public async Task Test_TagSourceDiffer()
         [WpfFact, Trait(Traits.Feature, Traits.Features.Diagnostics)]
         public async Task MultipleTaggersAndDispose()
         {
-            using (var workspace = await TestWorkspace.CreateCSharpAsync(new string[] { "class A {" }, CSharpParseOptions.Default))
+            using (var workspace = TestWorkspace.CreateCSharp(new string[] { "class A {" }, CSharpParseOptions.Default))
             using (var wrapper = new DiagnosticTaggerWrapper<IErrorTag>(workspace))
             {
                 // Make two taggers.
@@ -92,7 +92,7 @@ public async Task MultipleTaggersAndDispose()
         [WpfFact, Trait(Traits.Feature, Traits.Features.Diagnostics)]
         public async Task TaggerProviderCreatedAfterInitialDiagnosticsReported()
         {
-            using (var workspace = await TestWorkspace.CreateCSharpAsync(new string[] { "class C {" }, CSharpParseOptions.Default))
+            using (var workspace = TestWorkspace.CreateCSharp(new string[] { "class C {" }, CSharpParseOptions.Default))
             using (var wrapper = new DiagnosticTaggerWrapper<IErrorTag>(workspace, analyzerMap: null, createTaggerProvider: false))
             {
                 // First, make sure all diagnostics have been reported.
@@ -124,7 +124,7 @@ public async Task TestWithMockDiagnosticService_TaggerProviderCreatedBeforeIniti
             // succeed, but other squiggle tests fail, then it is likely an issue with the 
             // diagnostics engine not actually reporting all diagnostics properly.
 
-            using (var workspace = await TestWorkspace.CreateCSharpAsync(new string[] { "class A { }" }, CSharpParseOptions.Default))
+            using (var workspace = TestWorkspace.CreateCSharp(new string[] { "class A { }" }, CSharpParseOptions.Default))
             using (var wrapper = new DiagnosticTaggerWrapper<IErrorTag>(workspace))
             {
                 var asyncListener = new AsynchronousOperationListener();
@@ -165,7 +165,7 @@ public async Task TestWithMockDiagnosticService_TaggerProviderCreatedAfterInitia
             // succeed, but other squiggle tests fail, then it is likely an issue with the 
             // diagnostics engine not actually reporting all diagnostics properly.
 
-            using (var workspace = await TestWorkspace.CreateCSharpAsync(new string[] { "class A { }" }, CSharpParseOptions.Default))
+            using (var workspace = TestWorkspace.CreateCSharp(new string[] { "class A { }" }, CSharpParseOptions.Default))
             using (var wrapper = new DiagnosticTaggerWrapper<IErrorTag>(workspace))
             {
                 var asyncListener = new AsynchronousOperationListener();

src/EditorFeatures/TestUtilities/Workspaces/TestWorkspace_Create.cs

@@ -200,17 +200,17 @@ public partial class TestWorkspace
 
         #region C#
 
-        public static Task<TestWorkspace> CreateCSharpAsync(
+        public static async Task<TestWorkspace> CreateCSharpAsync(
             string file,
             ParseOptions parseOptions = null,
             CompilationOptions compilationOptions = null,
             ExportProvider exportProvider = null,
             string[] metadataReferences = null)
         {
-            return CreateCSharpAsync(new[] { file }, parseOptions, compilationOptions, exportProvider, metadataReferences);
+            return CreateCSharp(new[] { file }, parseOptions, compilationOptions, exportProvider, metadataReferences);
         }
 
-        public static async Task<TestWorkspace> CreateCSharpAsync(
+        public static TestWorkspace CreateCSharp(
             string[] files,
             ParseOptions parseOptions = null,
             CompilationOptions compilationOptions = null,

src/VisualStudio/Core/Test.Next/Services/ServiceHubServicesTests.cs

@@ -77,7 +77,7 @@ public async Task TestUnknownProject()
         [Fact, Trait(Traits.Feature, Traits.Features.RemoteHost)]
         public async Task TestRemoteHostSynchronizeIncrementalUpdate()
         {
-            using (var workspace = await TestWorkspace.CreateCSharpAsync(Array.Empty<string>(), metadataReferences: null))
+            using (var workspace = TestWorkspace.CreateCSharp(Array.Empty<string>(), metadataReferences: null))
             {
                 var client = (InProcRemoteHostClient)(await InProcRemoteHostClient.CreateAsync(workspace, runCacheCleanup: false, cancellationToken: CancellationToken.None));