Restrict the instance context of SA1101 to accessors

Fixes #2656

Author: sharwell

StyleCop.Analyzers/StyleCop.Analyzers.Test/ReadabilityRules/SA1101UnitTests.cs

@@ -363,6 +363,20 @@ public class Foo
             await this.VerifyCSharpDiagnosticAsync(testCode, EmptyDiagnosticResults, CancellationToken.None).ConfigureAwait(false);
         }
 
+        [Fact]
+        [WorkItem(2656, "https://github.com/DotNetAnalyzers/StyleCopAnalyzers/issues/2656")]
+        public async Task TestStaticMemberNameOfAsync()
+        {
+            var testCode = @"
+public class Foo
+{
+    public string Array { get; } = nameof(Array);
+}
+";
+
+            await this.VerifyCSharpDiagnosticAsync(testCode, EmptyDiagnosticResults, CancellationToken.None).ConfigureAwait(false);
+        }
+
         protected override IEnumerable<DiagnosticAnalyzer> GetCSharpDiagnosticAnalyzers()
         {
             yield return new SA1101PrefixLocalCallsWithThis();

StyleCop.Analyzers/StyleCop.Analyzers/ReadabilityRules/SA1101PrefixLocalCallsWithThis.cs

@@ -231,16 +231,21 @@ private static bool HasThis(SyntaxNode node)
 
                 case SyntaxKind.FieldDeclaration:
                 case SyntaxKind.EventFieldDeclaration:
+                case SyntaxKind.EventDeclaration:
+                case SyntaxKind.PropertyDeclaration:
+                case SyntaxKind.IndexerDeclaration:
                     return false;
 
                 case SyntaxKind.MultiLineDocumentationCommentTrivia:
                 case SyntaxKind.SingleLineDocumentationCommentTrivia:
                     return false;
 
-                case SyntaxKind.EventDeclaration:
-                case SyntaxKind.PropertyDeclaration:
-                case SyntaxKind.IndexerDeclaration:
-                    BasePropertyDeclarationSyntax basePropertySyntax = (BasePropertyDeclarationSyntax)node;
+                case SyntaxKind.GetAccessorDeclaration:
+                case SyntaxKind.SetAccessorDeclaration:
+                case SyntaxKind.AddAccessorDeclaration:
+                case SyntaxKind.RemoveAccessorDeclaration:
+                case SyntaxKind.UnknownAccessorDeclaration:
+                    BasePropertyDeclarationSyntax basePropertySyntax = (BasePropertyDeclarationSyntax)node.Parent.Parent;
                     return !basePropertySyntax.Modifiers.Any(SyntaxKind.StaticKeyword);
 
                 case SyntaxKind.ConstructorDeclaration: