SA1130 (UseLambdaSyntax) incorrect fix

```C#
var f = (Func<int>)delegate() { return 1; };
```
is fixed to 
```C#
var f = (Func<int>)() => { return 1; };
```
which does not build (missing parenthesis).

It needs to be fixed to 
```C#
var f = (Func<int>)(() => { return 1; });
```