Fix code fix status for omitted Fix All

Author: sharwell

StyleCop.Analyzers/StyleCop.Analyzers.Status.Generator/SolutionReader.cs

@@ -314,18 +314,17 @@ private IEnumerable<DiagnosticDescriptor> GetDescriptor(INamedTypeSymbol classSy
                 var codeFixes = this.CodeFixProviders
                     .Where(x => x.FixableDiagnosticIds.Contains(diagnosticId))
                     .Select(x => this.IsBatchFixer(x))
-                    .Where(x => x != null)
-                    .Select(x => (bool)x).ToArray();
+                    .ToArray();
 
                 hasCodeFix = codeFixes.Length > 0;
 
                 codeFixStatus = hasCodeFix ? CodeFixStatus.Implemented : CodeFixStatus.NotYetImplemented;
 
-                if (codeFixes.Any(x => x))
+                if (codeFixes.Any(x => x ?? false))
                 {
                     fixAllStatus = FixAllStatus.BatchFixer;
                 }
-                else if (codeFixes.Length > 0)
+                else if (codeFixes.Any(x => x != null))
                 {
                     fixAllStatus = FixAllStatus.CustomImplementation;
                 }