Re: [whatwg/encoding] Editorial: revamp the way we deal with code points and bytes (#247)

@annevk commented on this pull request.



>  
- <li><p>Return a code point whose value is 0xF780 + <var>byte</var> &minus; 0x80.
+ <li><p>If <var>byte</var> is an <a>ASCII byte</a>, then return a <a>code point</a> whose
+ <a for="code point">value</a> is <var>byteValue</var>.
+
+ <li><p>Return a <a>code point</a> whose <a for="code point">value</a> is
+ 0xF780 + <var>byteValue</var> &minus; 0x80.

We've had some cases where we want to distinguish bytes from numbers. So the question is whether we want to do that here as well. And I guess in some sense we do since we want to return code points or bytes, but a lot of the calculations are on numbers.

I think we could use _byte_ in the calculation directly (as we already did), but it wouldn't really be logically consistent with how we talk about bytes and numbers elsewhere in the web platform.

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