Update code to use null propagation (#78733)

Author: CyrusNajmabadi

src/EditorFeatures/CSharpTest/CodeActions/GenerateEqualsAndGetHashCodeFromMembers/GenerateEqualsAndGetHashCodeFromMembersTests.cs

@@ -69,10 +69,7 @@ private static OptionsCollection PreferExplicitTypeWithInfo()
     internal static void EnableOption(ImmutableArray<PickMembersOption> options, string id)
     {
         var option = options.FirstOrDefault(o => o.Id == id);
-        if (option != null)
-        {
-            option.Value = true;
-        }
+        option?.Value = true;
     }
 
     [Fact]

src/EditorFeatures/Core/InlineRename/InlineRenameSession.cs

@@ -806,12 +806,9 @@ private async Task<bool> CommitWorkerAsync(bool previewChanges, bool canUseBackg
 
         previewChanges = previewChanges || PreviewChanges;
 
-        if (editorUIOperationContext is not null)
-        {
-            // Prevent Editor's typing responsiveness auto canceling the rename operation.
-            // InlineRenameSession will call IUIThreadOperationExecutor to sets up our own IUIThreadOperationContext
-            editorUIOperationContext.TakeOwnership();
-        }
+        // Prevent Editor's typing responsiveness auto canceling the rename operation.
+        // InlineRenameSession will call IUIThreadOperationExecutor to sets up our own IUIThreadOperationContext
+        editorUIOperationContext?.TakeOwnership();
 
         try
         {

src/EditorFeatures/Core/InlineRename/UI/Adornment/RenameFlyoutViewModel.cs

@@ -325,10 +325,7 @@ protected virtual void Dispose(bool disposing)
                 Session.ReplacementsComputed -= OnReplacementsComputed;
                 Session.CommitStateChange -= CommitStateChange;
 
-                if (SmartRenameViewModel is not null)
-                {
-                    SmartRenameViewModel.Dispose();
-                }
+                SmartRenameViewModel?.Dispose();
 
                 UnregisterOleComponent();
             }

src/EditorFeatures/Core/Shared/Utilities/CaretPreservingEditTransaction.cs

@@ -93,10 +93,7 @@ public IMergeTextUndoTransactionPolicy? MergePolicy
 
         set
         {
-            if (_transaction != null)
-            {
-                _transaction.MergePolicy = value;
-            }
+            _transaction?.MergePolicy = value;
         }
     }
 

src/EditorFeatures/Core/SignatureHelp/Presentation/SignatureHelpPresenter.SignatureHelpPresenterSession.cs

@@ -97,10 +97,7 @@ public void PresentItems(
                 Contract.ThrowIfNull(_signatureMap);
 
                 var defaultValue = _signatureMap.GetValueOrDefault(_selectedItem);
-                if (_editorSessionOpt != null)
-                {
-                    _editorSessionOpt.SelectedSignature = defaultValue;
-                }
+                _editorSessionOpt?.SelectedSignature = defaultValue;
             }
             finally
             {

src/EditorFeatures/DiagnosticsTestUtilities/CodeActions/AbstractCodeActionTest.cs

@@ -166,10 +166,7 @@ internal static void EnableOptions(
     internal static void EnableOption(ImmutableArray<PickMembersOption> options, string id)
     {
         var option = options.FirstOrDefault(o => o.Id == id);
-        if (option != null)
-        {
-            option.Value = true;
-        }
+        option?.Value = true;
     }
 
     internal Task TestWithPickMembersDialogAsync(

src/Features/Core/Portable/GenerateOverrides/GenerateOverridesWithDialogCodeAction.cs

@@ -102,10 +102,7 @@ private sealed class ChangeOptionValueOperation(bool selectedAll) : CodeActionOp
             public override void Apply(Workspace workspace, CancellationToken cancellationToken)
             {
                 var service = workspace.Services.GetService<ILegacyGlobalOptionsWorkspaceService>();
-                if (service != null)
-                {
-                    service.GenerateOverrides = _selectedAll;
-                }
+                service?.GenerateOverrides = _selectedAll;
             }
         }
     }

src/Features/Core/Portable/QuickInfo/QuickInfoUtilities.cs

@@ -77,10 +77,7 @@ public static async Task<QuickInfoItem> CreateQuickInfoItemAsync(
         if (groups.TryGetValue(SymbolDescriptionGroups.Documentation, out var docParts) && !docParts.IsDefaultOrEmpty)
         {
             AddSection(QuickInfoSectionKinds.DocumentationComments, docParts);
-            if (onTheFlyDocsInfo != null)
-            {
-                onTheFlyDocsInfo.HasComments = true;
-            }
+            onTheFlyDocsInfo?.HasComments = true;
         }
 
         if (options.QuickInfoOptions.ShowRemarksInQuickInfo &&

src/Features/DiagnosticsTestUtilities/CodeActionsLegacy/AbstractCodeActionTest_NoEditor.cs

@@ -174,10 +174,7 @@ internal static void EnableOptions(
     internal static void EnableOption(ImmutableArray<PickMembersOption> options, string id)
     {
         var option = options.FirstOrDefault(o => o.Id == id);
-        if (option != null)
-        {
-            option.Value = true;
-        }
+        option?.Value = true;
     }
 
     internal Task TestWithPickMembersDialogAsync(

src/Scripting/Core/ScriptBuilder.cs

@@ -152,10 +152,7 @@ private Func<object[], Task<T>> Build<T>(
 
                 peStream.Position = 0;
 
-                if (pdbStreamOpt != null)
-                {
-                    pdbStreamOpt.Position = 0;
-                }
+                pdbStreamOpt?.Position = 0;
 
                 var assembly = _assemblyLoader.LoadAssemblyFromStream(peStream, pdbStreamOpt);
                 var runtimeEntryPoint = GetEntryPointRuntimeMethod(entryPoint, assembly);