Merge pull request #6617 from AmadeusW/fix2127

Corrects the ConvertToAutoPropertyCS sample

src/Samples/CSharp/ConvertToAutoProperty/Impl/PropertyRewriter.cs

@@ -57,10 +57,10 @@ public override SyntaxNode VisitPropertyDeclaration(PropertyDeclarationSyntax pr
 
         public override SyntaxNode VisitFieldDeclaration(FieldDeclarationSyntax field)
         {
-            // Retrieve the symbol for the field
+            // Retrieve the symbol for the field's variable
             if (field.Declaration.Variables.Count == 1)
             {
-                if (object.Equals(semanticModel.GetDeclaredSymbol(field), backingField))
+                if (object.Equals(semanticModel.GetDeclaredSymbol(field.Declaration.Variables.First()), backingField))
                 {
                     return null;
                 }