My thoughts on the RFC:
- The syntax `typename[]` is a poor. Consider how nullability might
bind `?int[]`. Is that `(?int)[]` or `?(int[])` ? Here are some
variants that do not have this issue:
[?int] and ?[int]
array<?int> and ?array<int>
- Our current infrastructure requires us to check every element of
the array for conformance. While undesirable I believe this can be
optimized away in the future if we care enough, and therefore not a
show-stopper.
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