Returning from operator[]= is void context.

[peter-ahe-google]

I've noticed that code like this:

class Context {
  final List list = [];
  operator[]= (int i, value) => list[i] = value;
}

Generates a lot of let expressions in the method body of operator[]=. I think this may be a common pattern, and that this is a void context, so it may be worth tweaking this.

[asgerf]

I sent you a CL with a fix.

[asgerf]

Fixed in 239d77596348966f7e3523452ab0caa84256bf62.