RAB: Integrate staging tests for the .reverse method

[ioannad]

of Array.prototype and TypedArray.prototype

This is part of PR #3888 to make reviewing easier. Includes changes to use the helper ./harness/resizableArrayBufferUtils.js

[ptomato]

Looks good. 👍

I was wondering if there's a possibility to test mid-iteration growing and shrinking. But I think there is not. There's no callback or argument conversion which we could use to resize the ArrayBuffer. There are property accesses on the TypedArray but you cannot redefine numeric property keys on a TypedArray. You could redefine length but that's not mid-iteration, it'd be essentially the same as what we're already testing.

[ioannad]

I was wondering if there's a possibility to test mid-iteration growing and shrinking. But I think there is not. There's no callback or argument conversion which we could use to resize the ArrayBuffer. There are property accesses on the TypedArray but you cannot redefine numeric property keys on a TypedArray. You could redefine length but that's not mid-iteration, it'd be essentially the same as what we're already testing.

@ptomato do you think we should open an issue to figure out how to write such tests?

[ptomato]

I'm not sure it's possible.