Cache the delegate for SA1503BracesMustNotBeOmitted.HandleIfStatement

Author: sharwell

StyleCop.Analyzers/StyleCop.Analyzers/LayoutRules/SA1503BracesMustNotBeOmitted.cs

@@ -3,6 +3,7 @@
 
 namespace StyleCop.Analyzers.LayoutRules
 {
+    using System;
     using System.Collections.Generic;
     using System.Collections.Immutable;
     using System.Linq;
@@ -67,6 +68,8 @@ internal class SA1503BracesMustNotBeOmitted : DiagnosticAnalyzer
         private static readonly DiagnosticDescriptor Descriptor =
             new DiagnosticDescriptor(DiagnosticId, Title, MessageFormat, AnalyzerCategory.LayoutRules, DiagnosticSeverity.Warning, AnalyzerConstants.EnabledByDefault, Description, HelpLink);
 
+        private static readonly Action<SyntaxNodeAnalysisContext> IfStatementAction = HandleIfStatement;
+
         /// <inheritdoc/>
         public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics { get; } =
             ImmutableArray.Create(Descriptor);
@@ -77,7 +80,7 @@ public override void Initialize(AnalysisContext context)
             context.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.None);
             context.EnableConcurrentExecution();
 
-            context.RegisterSyntaxNodeAction(HandleIfStatement, SyntaxKind.IfStatement);
+            context.RegisterSyntaxNodeAction(IfStatementAction, SyntaxKind.IfStatement);
             context.RegisterSyntaxNodeAction(ctx => CheckChildStatement(ctx, ((DoStatementSyntax)ctx.Node).Statement), SyntaxKind.DoStatement);
             context.RegisterSyntaxNodeAction(ctx => CheckChildStatement(ctx, ((WhileStatementSyntax)ctx.Node).Statement), SyntaxKind.WhileStatement);
             context.RegisterSyntaxNodeAction(ctx => CheckChildStatement(ctx, ((ForStatementSyntax)ctx.Node).Statement), SyntaxKind.ForStatement);