Re: [whatwg/webidl] FrozenArray<SomeDictionary> seems like a bad idea. (Issue #1243)

> The name might be fine if we could clarify a bit where it says _"A [frozen array type](https://webidl.spec.whatwg.org/#dfn-frozen-array-type) is a parameterized type whose values are references to objects that hold a fixed length array of **unmodifiable** values."_

Agreed, that sentence seems actively misleading.

> The only thing to dispel this seems to be: _"There is no way to represent a constant frozen array value in IDL."_ — which reads like a WebIDL bug more than any guiding design choice

That's just due to the fact that Web IDL's constant grammar is very limited: you can do basic stuff like `true`, `false`, `1.0`, and `[]`, but nothing else.

> (are non-constant interfaces +1 -1?)

You mean, interfaces with non-readonly properties? Those are totally fine!

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