On: When zero cost abstractions aren't zero cost

[hsn915]

I expect the special case handling for u8 to also apply to types that are just a strong typedef around u8.

[bilkow → hsn915]

Rust has "typedefs" and those are called type aliases.

The intention of the newtype pattern is to specifically create a new type without the behaviour of the wrapped type, so if there's a special case just for u8, I would expect it not to be on the newtype.

[jcranberry → bilkow]

A "strong typedef" is not a typedef.