Merge pull request #4 from jnyrup/OnlyHaveUniqueItems

Codefix for CollectionShouldOnlyHaveUniqueItemsByComparer

Author: Meir017

src/FluentAssertions.BestPractices/Tips/Collections/CollectionShouldOnlyHaveUniqueItemsByComparer.cs

@@ -42,6 +42,6 @@ public class CollectionShouldOnlyHaveUniqueItemsByComparerCodeFix : FluentAssert
         public override ImmutableArray<string> FixableDiagnosticIds => ImmutableArray.Create(CollectionShouldOnlyHaveUniqueItemsByComparerAnalyzer.DiagnosticId);
 
         protected override StatementSyntax GetNewStatement(FluentAssertionsDiagnosticProperties properties)
-            => SyntaxFactory.ParseStatement($"{properties}.Should().OnlyHaveUniqueItems({properties.CombineWithBecauseArgumentsString(properties.LambdaString)})");
+            => SyntaxFactory.ParseStatement($"{properties.VariableName}.Should().OnlyHaveUniqueItems({properties.CombineWithBecauseArgumentsString(properties.LambdaString)});");
     }
 }