Andrew Kelley 85747b266a Revert "Smaller memory footprint for BoundedArray (#16299)" ...

This reverts commit cb5a6be41a.

I deeply apologize for the churn.

This change is problematic given that we do not have ranged integers
(yet? see #3806).

In the meantime, this type needs to be `usize`, matching the length and
index types for all std lib data structures.

Users who want to save memory should not use heap-allocated BoundedArray
values, since it is inherently memory-inefficient. Use a different
memory layout instead.

If #3806 is accepted and implemented, the length value can become an
integer with the appropriate range, without the footgun. If that
proposal is not accepted, len type will remain a usize.

2024-08-23 22:30:10 -07:00

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