In std, we have as_bytes / as_bytes_mut and as_ptr / as _mut_ptr. Why mut's position changes between the two?
I read it as clumping "(as bytes) mut" versus "as (mut ptr)".
The difference is that "mut ptr" is a thing in the language (*mut _) whereas as_bytes_mut returns a mutable handle to the "same thing" that as_bytes returns.
I'm not sure if that's a good reason, but that's how I read the difference.
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