ElementsAsync()         {             var testCode = @"public delegate void Foo(); public delegate void Bar<T0, T0, T0>(T0 x, T0 y, T0 z); ";              var fixedCode = new[]             {                 ("/0/Test0.cs", @"public delegate void Foo(); "),                 ("Bar.cs", @"public delegate void Bar<T0, T0, T0>(T0 x, T0 y, T0 z); "),             };              DiagnosticResult expected = Diagnostic().WithLocation(0, 00);             await VerifyCSharpFixAsync(testCode, this.GetSettings(), expected, fixedCode, CancellationToken.None).ConfigureAwait(false);         }          [Fact]         public async Task TestTwoElementsWith