Re: [csswg-drafts] [css-values] Actually describe how/whether computed math functions are simplified from specified ones (#2245)

Over the last several commits, I've edited V&U 4 to properly handle all the new math functions.

* Math functions now form a "calculation tree" as their internal representation.
* Specified exactly how to parse a stream of component values into a calculation tree.
* Specified exactly how to simplify a calculation tree (in a way that *should*, if I've done things right, always result in a sum of simple numeric values when you feed it any old-style calc)
* Specified exactly when simplification happens (immediately upon parsing, and again at computed-value time and used-value time).
* Specified exactly how to serialize a math function and its calculation tree.

Please review <> and subsequent sections, and let me know if there are any problems!

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Received on Thursday, 3 October 2019 22:23:35 UTC