Use implicit object creation in C# VS layer.

src/VisualStudio/CSharp/Impl/CSharpPackage.cs

@@ -140,7 +140,7 @@ protected override IEnumerable<IVsEditorFactory> CreateEditorFactories()
         }
 
         protected override CSharpLanguageService CreateLanguageService()
-            => new CSharpLanguageService(this);
+            => new(this);
 
         protected override void RegisterMiscellaneousFilesWorkspaceInformation(MiscellaneousFilesWorkspace miscellaneousFilesWorkspace)
         {

src/VisualStudio/CSharp/Impl/ChangeSignature/CSharpChangeSignatureViewModelFactoryService.cs

@@ -16,7 +16,7 @@ namespace Microsoft.VisualStudio.LanguageServices.CSharp.ChangeSignature
     [ExportLanguageService(typeof(IChangeSignatureViewModelFactoryService), LanguageNames.CSharp), Shared]
     internal class CSharpChangeSignatureViewModelFactoryService : ChangeSignatureViewModelFactoryService
     {
-        private static readonly CSharpParseOptions s_langVersionLatestParseOptions = new CSharpParseOptions(LanguageVersion.Preview);
+        private static readonly CSharpParseOptions s_langVersionLatestParseOptions = new(LanguageVersion.Preview);
 
         [ImportingConstructor]
         [Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]

src/VisualStudio/CSharp/Impl/CodeModel/CSharpCodeModelService.cs

@@ -48,24 +48,24 @@ internal partial class CSharpCodeModelService : AbstractCodeModelService
         }
 
         private static readonly SymbolDisplayFormat s_codeTypeRefAsFullNameFormat =
-            new SymbolDisplayFormat(
+            new(
                 typeQualificationStyle: SymbolDisplayTypeQualificationStyle.NameAndContainingTypesAndNamespaces,
                 genericsOptions: SymbolDisplayGenericsOptions.IncludeTypeParameters,
                 miscellaneousOptions: SymbolDisplayMiscellaneousOptions.EscapeKeywordIdentifiers | SymbolDisplayMiscellaneousOptions.ExpandNullable);
 
         private static readonly SymbolDisplayFormat s_codeTypeRefAsStringFormat =
-            new SymbolDisplayFormat(
+            new(
                 typeQualificationStyle: SymbolDisplayTypeQualificationStyle.NameAndContainingTypesAndNamespaces,
                 genericsOptions: SymbolDisplayGenericsOptions.IncludeTypeParameters,
                 miscellaneousOptions: SymbolDisplayMiscellaneousOptions.EscapeKeywordIdentifiers | SymbolDisplayMiscellaneousOptions.UseSpecialTypes);
 
         private static readonly SymbolDisplayFormat s_externalNameFormat =
-            new SymbolDisplayFormat(
+            new(
                 miscellaneousOptions: SymbolDisplayMiscellaneousOptions.EscapeKeywordIdentifiers,
                 parameterOptions: SymbolDisplayParameterOptions.IncludeName);
 
         private static readonly SymbolDisplayFormat s_externalFullNameFormat =
-            new SymbolDisplayFormat(
+            new(
                 typeQualificationStyle: SymbolDisplayTypeQualificationStyle.NameAndContainingTypesAndNamespaces,
                 memberOptions: SymbolDisplayMemberOptions.IncludeContainingType | SymbolDisplayMemberOptions.IncludeExplicitInterface,
                 genericsOptions: SymbolDisplayGenericsOptions.IncludeTypeParameters,
@@ -73,7 +73,7 @@ internal partial class CSharpCodeModelService : AbstractCodeModelService
                 parameterOptions: SymbolDisplayParameterOptions.IncludeName);
 
         private static readonly SymbolDisplayFormat s_setTypeFormat =
-            new SymbolDisplayFormat(
+            new(
                 globalNamespaceStyle: SymbolDisplayGlobalNamespaceStyle.Omitted,
                 typeQualificationStyle: SymbolDisplayTypeQualificationStyle.NameAndContainingTypesAndNamespaces,
                 genericsOptions: SymbolDisplayGenericsOptions.IncludeTypeParameters,

src/VisualStudio/CSharp/Impl/CodeModel/EndRegionFormattingRule.cs

@@ -10,7 +10,7 @@ namespace Microsoft.VisualStudio.LanguageServices.CSharp.CodeModel
 {
     internal sealed class EndRegionFormattingRule : AbstractFormattingRule
     {
-        public static readonly EndRegionFormattingRule Instance = new EndRegionFormattingRule();
+        public static readonly EndRegionFormattingRule Instance = new();
 
         private EndRegionFormattingRule()
         {

src/VisualStudio/CSharp/Impl/CodeModel/ModifierFlagsExtensions.cs

@@ -13,7 +13,7 @@ namespace Microsoft.VisualStudio.LanguageServices.CSharp.CodeModel
 {
     internal static class ModifierFlagsExtensions
     {
-        private static readonly SortedList<ModifierFlags, SyntaxKind> s_modifierDefinitions = new SortedList<ModifierFlags, SyntaxKind>
+        private static readonly SortedList<ModifierFlags, SyntaxKind> s_modifierDefinitions = new()
         {
             { ModifierFlags.Public, SyntaxKind.PublicKeyword },
             { ModifierFlags.Protected, SyntaxKind.ProtectedKeyword },

src/VisualStudio/CSharp/Impl/Interactive/CSharpVsInteractiveWindowPackage.cs

@@ -15,7 +15,7 @@ namespace Microsoft.VisualStudio.LanguageServices.CSharp.Interactive
     internal sealed partial class CSharpVsInteractiveWindowPackage : VsInteractiveWindowPackage<CSharpVsInteractiveWindowProvider>
     {
         private const string IdString = "CA8CC5C7-0231-406A-95CD-AA5ED6AC0190";
-        internal static readonly Guid Id = new Guid(IdString);
+        internal static readonly Guid Id = new(IdString);
 
         protected override Guid ToolWindowId
         {

src/VisualStudio/CSharp/Impl/ObjectBrowser/CSharpLibraryService.cs

@@ -14,11 +14,11 @@ namespace Microsoft.VisualStudio.LanguageServices.CSharp.ObjectBrowser
     [ExportLanguageService(typeof(ILibraryService), LanguageNames.CSharp), Shared]
     internal class CSharpLibraryService : AbstractLibraryService
     {
-        private static readonly SymbolDisplayFormat s_typeDisplayFormat = new SymbolDisplayFormat(
+        private static readonly SymbolDisplayFormat s_typeDisplayFormat = new(
             typeQualificationStyle: SymbolDisplayTypeQualificationStyle.NameAndContainingTypes,
             genericsOptions: SymbolDisplayGenericsOptions.IncludeTypeParameters | SymbolDisplayGenericsOptions.IncludeVariance);
 
-        private static readonly SymbolDisplayFormat s_memberDisplayFormat = new SymbolDisplayFormat(
+        private static readonly SymbolDisplayFormat s_memberDisplayFormat = new(
             typeQualificationStyle: SymbolDisplayTypeQualificationStyle.NameAndContainingTypesAndNamespaces,
             genericsOptions: SymbolDisplayGenericsOptions.IncludeTypeParameters | SymbolDisplayGenericsOptions.IncludeVariance,
             memberOptions: SymbolDisplayMemberOptions.IncludeExplicitInterface | SymbolDisplayMemberOptions.IncludeParameters,

src/VisualStudio/CSharp/Impl/ObjectBrowser/ListItemFactory.cs

@@ -10,7 +10,7 @@ namespace Microsoft.VisualStudio.LanguageServices.CSharp.ObjectBrowser
     internal class ListItemFactory : AbstractListItemFactory
     {
         private static readonly SymbolDisplayFormat s_memberDisplayFormat =
-            new SymbolDisplayFormat(
+            new(
                 typeQualificationStyle: SymbolDisplayTypeQualificationStyle.NameAndContainingTypesAndNamespaces,
                 genericsOptions: SymbolDisplayGenericsOptions.IncludeTypeParameters | SymbolDisplayGenericsOptions.IncludeVariance,
                 memberOptions: SymbolDisplayMemberOptions.IncludeExplicitInterface | SymbolDisplayMemberOptions.IncludeParameters,
@@ -18,7 +18,7 @@ internal class ListItemFactory : AbstractListItemFactory
                 miscellaneousOptions: SymbolDisplayMiscellaneousOptions.UseSpecialTypes);
 
         private static readonly SymbolDisplayFormat s_memberWithContainingTypeDisplayFormat =
-            new SymbolDisplayFormat(
+            new(
                 typeQualificationStyle: SymbolDisplayTypeQualificationStyle.NameAndContainingTypesAndNamespaces,
                 genericsOptions: SymbolDisplayGenericsOptions.IncludeTypeParameters | SymbolDisplayGenericsOptions.IncludeVariance,
                 memberOptions: SymbolDisplayMemberOptions.IncludeContainingType | SymbolDisplayMemberOptions.IncludeExplicitInterface | SymbolDisplayMemberOptions.IncludeParameters,

src/VisualStudio/CSharp/Impl/Progression/CSharpProgressionLanguageService.cs

@@ -24,7 +24,7 @@ namespace Microsoft.VisualStudio.LanguageServices.CSharp.Progression
     [ExportLanguageService(typeof(IProgressionLanguageService), LanguageNames.CSharp), Shared]
     internal partial class CSharpProgressionLanguageService : IProgressionLanguageService
     {
-        private static readonly SymbolDisplayFormat s_descriptionFormat = new SymbolDisplayFormat(
+        private static readonly SymbolDisplayFormat s_descriptionFormat = new(
             globalNamespaceStyle: SymbolDisplayGlobalNamespaceStyle.OmittedAsContaining,
             typeQualificationStyle: SymbolDisplayTypeQualificationStyle.NameAndContainingTypesAndNamespaces,
             genericsOptions: SymbolDisplayGenericsOptions.IncludeTypeParameters,
@@ -35,7 +35,7 @@ internal partial class CSharpProgressionLanguageService : IProgressionLanguageSe
                               SymbolDisplayParameterOptions.IncludeOptionalBrackets,
             miscellaneousOptions: SymbolDisplayMiscellaneousOptions.UseSpecialTypes);
 
-        private static readonly SymbolDisplayFormat s_labelFormat = new SymbolDisplayFormat(
+        private static readonly SymbolDisplayFormat s_labelFormat = new(
             genericsOptions: SymbolDisplayGenericsOptions.IncludeTypeParameters,
             memberOptions: SymbolDisplayMemberOptions.IncludeParameters |
                            SymbolDisplayMemberOptions.IncludeExplicitInterface,

src/VisualStudio/CSharp/Impl/Utilities/BlankLineInGeneratedMethodFormattingRule.cs

@@ -10,7 +10,7 @@ namespace Microsoft.VisualStudio.LanguageServices.CSharp.Utilities
 {
     internal sealed class BlankLineInGeneratedMethodFormattingRule : AbstractFormattingRule
     {
-        public static readonly BlankLineInGeneratedMethodFormattingRule Instance = new BlankLineInGeneratedMethodFormattingRule();
+        public static readonly BlankLineInGeneratedMethodFormattingRule Instance = new();
 
         private BlankLineInGeneratedMethodFormattingRule()
         {