Changes to the struct update syntax

[josevalim]

@michalmuskala

I think the type system should be able to detect this as well. Effectively this would be the same as code:

Yes, in fact it does in main. I was concise in the original description as to not go too much into the typing aspects, but there are cases where it is ambiguous and we cannot, I gave one example here: Changes to the struct update syntax - #35 by josevalim

@michalmuskala

With the migration as suggested, it would be changed to:

Good point. The migration would definitely require some care in certain cases such as the one you presented.