Fix component script param parse if its a function

[xQwexx]

I tried to add script param for a component but it was having an error

const script = ()=>{
  const el: HTMLDivElement = this as any;
  console.log(el.id)
  // this is bound to the component element
  console.log('the element', this);
};

because it was converted to:

ƒ () {
    var el = _this;
    console.log(el.id);
    // this is bound to the component element
    console.log('the element', _this);
}

[artf]

I think there is more of an issue with the compiler as you're using this and an array function (so the bundler tries to keep this context for you).
I'd simply avoid using array functions with component scripts as the context is never the same and that might bring similar issues.
Anyway, replacing blindly replaceAll('_this', 'this') will never be a solid fix as you risk replacing something unintentionally (considering in JS you can do a lot of dynamic stuff)