Enable SA1641 code fix

Author: sharwell

StyleCop.Analyzers/StyleCop.Analyzers.Test/DocumentationRules/SA1641UnitTests.cs

@@ -25,13 +25,23 @@ public async Task TestCopyrightElementWithWrongCompanyAttributeAsync()
 //   Copyright (c) FooCorp. All rights reserved.
 // </copyright>
 
+namespace Bar
+{
+}
+";
+            var fixedCode = @"// <copyright file=""Test0.cs"" company=""FooCorp"">
+// Copyright (c) FooCorp. All rights reserved.
+// </copyright>
+
 namespace Bar
 {
 }
 ";
 
             var expectedDiagnostic = this.CSharpDiagnostic(FileHeaderAnalyzers.SA1641Descriptor).WithLocation(1, 4);
             await this.VerifyCSharpDiagnosticAsync(testCode, expectedDiagnostic, CancellationToken.None).ConfigureAwait(false);
+            await this.VerifyCSharpDiagnosticAsync(fixedCode, EmptyDiagnosticResults, CancellationToken.None).ConfigureAwait(false);
+            await this.VerifyCSharpFixAsync(testCode, fixedCode, cancellationToken: CancellationToken.None).ConfigureAwait(false);
         }
 
         /// <summary>
@@ -45,18 +55,28 @@ public async Task TestCopyrightElementWithInvalidCaseCompanyAttributeAsync()
 //   Copyright (c) FooCorp. All rights reserved.
 // </copyright>
 
+namespace Bar
+{
+}
+";
+            var fixedCode = @"// <copyright file=""Test0.cs"" company=""FooCorp"">
+// Copyright (c) FooCorp. All rights reserved.
+// </copyright>
+
 namespace Bar
 {
 }
 ";
 
             var expectedDiagnostic = this.CSharpDiagnostic(FileHeaderAnalyzers.SA1641Descriptor).WithLocation(1, 4);
             await this.VerifyCSharpDiagnosticAsync(testCode, expectedDiagnostic, CancellationToken.None).ConfigureAwait(false);
+            await this.VerifyCSharpDiagnosticAsync(fixedCode, EmptyDiagnosticResults, CancellationToken.None).ConfigureAwait(false);
+            await this.VerifyCSharpFixAsync(testCode, fixedCode, cancellationToken: CancellationToken.None).ConfigureAwait(false);
         }
 
         protected override CodeFixProvider GetCSharpCodeFixProvider()
         {
-            throw new System.NotImplementedException();
+            return new FileHeaderCodeFixProvider();
         }
     }
 }

StyleCop.Analyzers/StyleCop.Analyzers/DocumentationRules/FileHeaderCodeFixProvider.cs

@@ -35,7 +35,8 @@ internal class FileHeaderCodeFixProvider : CodeFixProvider
                 FileHeaderAnalyzers.SA1633DescriptorMissing.Id,
                 FileHeaderAnalyzers.SA1634Descriptor.Id,
                 FileHeaderAnalyzers.SA1635Descriptor.Id,
-                FileHeaderAnalyzers.SA1636Descriptor.Id);
+                FileHeaderAnalyzers.SA1636Descriptor.Id,
+                FileHeaderAnalyzers.SA1641Descriptor.Id);
 
         /// <inheritdoc/>
         public override FixAllProvider GetFixAllProvider()