Use default literal

src/EditorFeatures/Core/Commands/CutCommandArgs.cs

@@ -12,8 +12,8 @@ namespace Microsoft.CodeAnalysis.Editor.Commands
     [ExcludeFromCodeCoverage]
     internal class CutCommandArgs : CommandArgs
     {
-        public CutCommandArgs(ITextView textView, ITextBuffer subjectBuffer) :
-            base(textView, subjectBuffer)
+        public CutCommandArgs(ITextView textView, ITextBuffer subjectBuffer)
+            : base(textView, subjectBuffer)
         {
         }
     }

src/EditorFeatures/TestUtilities/BraceHighlighting/MultiCharacterBraceHighlightingTests.cs

@@ -29,7 +29,7 @@ private ImmutableArray<TextSpan> GetSpans(BraceMatchingResult? result)
         private class TestBraceMatchingService : IBraceMatchingService
         {
             public async Task<BraceMatchingResult?> GetMatchingBracesAsync(
-                Document document, int position, CancellationToken cancellationToken = default(CancellationToken))
+                Document document, int position, CancellationToken cancellationToken = default)
             {
                 var text = (await document.GetTextAsync(cancellationToken)).ToString();
                 var braces = GetMatchingBraces(text, position);

src/EditorFeatures/TestUtilities/Diagnostics/AbstractUserDiagnosticTest.cs

@@ -337,7 +337,7 @@ protected Document GetDocumentAndAnnotatedSpan(TestWorkspace workspace, out stri
             string projectName = null,
             bool isNewFile = false,
             string existingFilename = null,
-            ImmutableArray<string> newFileFolderContainers = default(ImmutableArray<string>),
+            ImmutableArray<string> newFileFolderContainers = default,
             string fullFilePath = null,
             string newFileName = null,
             string assertClassName = null,

src/EditorFeatures/TestUtilities/Diagnostics/TestDiagnosticAnalyzerDriver.cs

@@ -125,7 +125,7 @@ public Task<IEnumerable<Diagnostic>> GetDocumentDiagnosticsAsync(Document docume
 
         public Task<IEnumerable<Diagnostic>> GetProjectDiagnosticsAsync(Project project)
         {
-            return GetDiagnosticsAsync(project, document: null, span: default(TextSpan), getDocumentDiagnostics: false, getProjectDiagnostics: true);
+            return GetDiagnosticsAsync(project, document: null, span: default, getDocumentDiagnostics: false, getProjectDiagnostics: true);
         }
 
         private async Task SynchronizeGlobalAssetToRemoteHostIfNeededAsync(Workspace workspace)

src/EditorFeatures/TestUtilities/EditAndContinue/ActiveStatementsDescription.cs

@@ -206,7 +206,7 @@ public static void EnsureSlot<T>(List<T> list, int i)
         {
             while (i >= list.Count)
             {
-                list.Add(default(T));
+                list.Add(default);
             }
         }
     }

src/EditorFeatures/TestUtilities/EditAndContinue/DeclaratorMapDescription.cs

@@ -73,7 +73,7 @@ private static void EnsureSlot<T>(List<T> list, int i)
         {
             while (i >= list.Count)
             {
-                list.Add(default(T));
+                list.Add(default);
             }
         }
     }

src/EditorFeatures/TestUtilities/EditAndContinue/EditAndContinueTestHelpers.cs

@@ -190,7 +190,7 @@ internal abstract class EditAndContinueTestHelpers
                 triviaEdits,
                 actualLineEdits,
                 diagnostics,
-                default(CancellationToken));
+                default);
 
             diagnostics.Verify(newSource, expectedDiagnostics);
 

src/EditorFeatures/TestUtilities/EditAndContinue/Extensions.cs

@@ -21,7 +21,7 @@ private static IEnumerable<RudeEditDiagnosticDescription> ToDescription(this IEn
         {
             return diagnostics.Select(d => new RudeEditDiagnosticDescription(
                 d.Kind,
-                d.Span == default(TextSpan) ? null : newSource.Substring(d.Span.Start, d.Span.Length),
+                d.Span == default ? null : newSource.Substring(d.Span.Start, d.Span.Length),
                 d.Arguments,
                 firstLine: includeFirstLines ? GetLineAt(newSource, d.Span.Start) : null));
         }

src/EditorFeatures/TestUtilities/MoveType/AbstractMoveTypeTest.cs

@@ -137,7 +137,7 @@ protected override CodeRefactoringProvider CreateCodeRefactoringProvider(Workspa
             string expectedSourceTextAfterRefactoring,
             string expectedDocumentName,
             string destinationDocumentText,
-            ImmutableArray<string> destinationDocumentContainers = default(ImmutableArray<string>),
+            ImmutableArray<string> destinationDocumentContainers = default,
             bool expectedCodeAction = true,
             int index = 0,
             Action<Workspace> onAfterWorkspaceCreated = null)

src/EditorFeatures/TestUtilities/Squiggles/AbstractSquiggleProducerTests.cs

@@ -104,7 +104,7 @@ public void RaiseDiagnosticsUpdated(DiagnosticsUpdatedArgs args)
 
             public bool SupportGetDiagnostics => false;
 
-            public ImmutableArray<DiagnosticData> GetDiagnostics(Workspace workspace, ProjectId projectId, DocumentId documentId, object id, bool includeSuppressedDiagnostics = false, CancellationToken cancellationToken = default(CancellationToken))
+            public ImmutableArray<DiagnosticData> GetDiagnostics(Workspace workspace, ProjectId projectId, DocumentId documentId, object id, bool includeSuppressedDiagnostics = false, CancellationToken cancellationToken = default)
             {
                 return includeSuppressedDiagnostics ? _diagnostics : _diagnostics.WhereAsArray(d => !d.IsSuppressed);
             }

src/EditorFeatures/TestUtilities/Workspaces/NoCompilationDocumentDiagnosticAnalyzer.cs

@@ -26,7 +26,7 @@ public override Task<ImmutableArray<Diagnostic>> AnalyzeSemanticsAsync(Document
         public override Task<ImmutableArray<Diagnostic>> AnalyzeSyntaxAsync(Document document, CancellationToken cancellationToken)
         {
             return Task.FromResult(ImmutableArray.Create(
-                Diagnostic.Create(Descriptor, Location.Create(document.FilePath, default(TextSpan), default(LinePositionSpan)))));
+                Diagnostic.Create(Descriptor, Location.Create(document.FilePath, default, default))));
         }
     }
 }

src/EditorFeatures/TestUtilities/Workspaces/TestForegroundNotificationService.cs

@@ -15,12 +15,12 @@ internal class TestForegroundNotificationService : IForegroundNotificationServic
         private readonly List<Task> _tasks = new List<Task>();
         private readonly SimpleTaskQueue _queue = new SimpleTaskQueue(TaskScheduler.Default);
 
-        public void RegisterNotification(Func<bool> action, IAsyncToken asyncToken, CancellationToken cancellationToken = default(CancellationToken))
+        public void RegisterNotification(Func<bool> action, IAsyncToken asyncToken, CancellationToken cancellationToken = default)
         {
             RegisterNotification(action, 0, asyncToken, cancellationToken);
         }
 
-        public void RegisterNotification(Func<bool> action, int delayInMS, IAsyncToken asyncToken, CancellationToken cancellationToken = default(CancellationToken))
+        public void RegisterNotification(Func<bool> action, int delayInMS, IAsyncToken asyncToken, CancellationToken cancellationToken = default)
         {
             Task task;
             lock (_gate)
@@ -44,12 +44,12 @@ private void Execute_NoLock(Func<bool> action, IAsyncToken asyncToken, Cancellat
             }
         }
 
-        public void RegisterNotification(Action action, IAsyncToken asyncToken, CancellationToken cancellationToken = default(CancellationToken))
+        public void RegisterNotification(Action action, IAsyncToken asyncToken, CancellationToken cancellationToken = default)
         {
             RegisterNotification(action, 0, asyncToken, cancellationToken);
         }
 
-        public void RegisterNotification(Action action, int delayInMS, IAsyncToken asyncToken, CancellationToken cancellationToken = default(CancellationToken))
+        public void RegisterNotification(Action action, int delayInMS, IAsyncToken asyncToken, CancellationToken cancellationToken = default)
         {
             Task task;
             lock (_gate)

src/EditorFeatures/TestUtilities/Workspaces/TestFormattingRuleFactoryServiceFactory.cs

@@ -27,7 +27,7 @@ public IWorkspaceService CreateService(HostWorkspaceServices workspaceServices)
         public sealed class Factory : IHostDependentFormattingRuleFactoryService
         {
             public int BaseIndentation = 0;
-            public TextSpan TextSpan = default(TextSpan);
+            public TextSpan TextSpan = default;
             public bool UseBaseIndentation = false;
 
             public bool ShouldUseBaseIndentation(Document document)

src/EditorFeatures/TestUtilities/Workspaces/TestWorkspace_XmlConsumption.cs

@@ -41,7 +41,7 @@ public partial class TestWorkspace
 
         private class TestDocumentationProvider : DocumentationProvider
         {
-            protected override string GetDocumentationForSymbol(string documentationMemberID, CultureInfo preferredCulture, CancellationToken cancellationToken = default(CancellationToken))
+            protected override string GetDocumentationForSymbol(string documentationMemberID, CultureInfo preferredCulture, CancellationToken cancellationToken = default)
             {
                 return string.Format("<member name='{0}'><summary>{0}</summary></member>", documentationMemberID);
             }
@@ -143,7 +143,7 @@ public static TestWorkspace Create(string xmlDefinition, bool completed = true,
 
                     var aliases = projectReference.Attributes(AliasAttributeName).Select(a => a.Value).ToImmutableArray();
 
-                    workspace.OnProjectReferenceAdded(fromProject.Id, new ProjectReference(toProject.Id, aliases.Any() ? aliases : default(ImmutableArray<string>)));
+                    workspace.OnProjectReferenceAdded(fromProject.Id, new ProjectReference(toProject.Id, aliases.Any() ? aliases : default));
                 }
             }
 
@@ -786,7 +786,7 @@ private static MetadataReference CreateMetadataReferenceFromSource(TestWorkspace
             var compilation = CreateCompilation(workspace, referencedSource);
 
             var aliasElement = referencedSource.Attribute("Aliases")?.Value;
-            var aliases = aliasElement != null ? aliasElement.Split(',').Select(s => s.Trim()).ToImmutableArray() : default(ImmutableArray<string>);
+            var aliases = aliasElement != null ? aliasElement.Split(',').Select(s => s.Trim()).ToImmutableArray() : default;
 
             bool includeXmlDocComments = false;
             var includeXmlDocCommentsAttribute = referencedSource.Attribute(IncludeXmlDocCommentsAttributeName);