Make methods synchronous

src/EditorFeatures/CSharpTest/Completion/CompletionProviders/CrefCompletionProviderTests.cs

@@ -420,7 +420,7 @@ public async Task CrefCompletionSpeculatesOutsideTrivia()
 class C
 {
 }";
-            using (var workspace = await TestWorkspace.CreateAsync(LanguageNames.CSharp, new CSharpCompilationOptions(OutputKind.ConsoleApplication), new CSharpParseOptions(), new[] { text }))
+            using (var workspace = TestWorkspace.Create(LanguageNames.CSharp, new CSharpCompilationOptions(OutputKind.ConsoleApplication), new CSharpParseOptions(), new[] { text }))
             {
                 var called = false;
                 var provider = new CrefCompletionProvider(testSpeculativeNodeCallbackOpt: n =>

src/EditorFeatures/TestUtilities/Workspaces/TestWorkspace_Create.cs

@@ -60,13 +60,13 @@ public partial class TestWorkspace
         /// Creates a single buffer in a workspace.
         /// </summary>
         /// <param name="content">Lines of text, the buffer contents</param>
-        internal static Task<TestWorkspace> CreateAsync(
+        internal static async Task<TestWorkspace> CreateAsync(
             string language,
             CompilationOptions compilationOptions,
             ParseOptions parseOptions,
             string content)
         {
-            return CreateAsync(language, compilationOptions, parseOptions, new[] { content });
+            return Create(language, compilationOptions, parseOptions, new[] { content });
         }
 
         /// <summary>
@@ -99,7 +99,7 @@ public partial class TestWorkspace
         }
 
         /// <param name="files">Can pass in multiple file contents: files will be named test1.cs, test2.cs, etc.</param>
-        internal static async Task<TestWorkspace> CreateAsync(
+        internal static TestWorkspace Create(
             string language,
             CompilationOptions compilationOptions,
             ParseOptions parseOptions,

src/EditorFeatures/VisualBasicTest/Completion/CompletionProviders/CrefCompletionProviderTests.vb

@@ -416,7 +416,7 @@ Class C
     End Sub
 End Class]]></a>.Value.NormalizeLineEndings()
 
-            Using workspace = Await TestWorkspace.CreateAsync(LanguageNames.VisualBasic, New VisualBasicCompilationOptions(OutputKind.ConsoleApplication), New VisualBasicParseOptions(), {text})
+            Using workspace = TestWorkspace.Create(LanguageNames.VisualBasic, New VisualBasicCompilationOptions(OutputKind.ConsoleApplication), New VisualBasicParseOptions(), {text})
                 Dim called = False
 
                 Dim completionProvider = New CrefCompletionProvider(