[FEAT] Adds memoizeTracked

[pzuraq]

Adds memoizeTracked, which is meant to clean up autotracking patterns
in general by simplifying them. Also introduces beginTrackFrame and
endTrackFrame for usage within the VM.

memoizeTracked has the following signature:

function memoizeTracked<T, Args>((...args: Args) => T): (...args: Args) => T;

It essentially receives a function, and returns the same function but memoized based on tracking. If you consume a tag within that function, it will memoize based on that tag, and will only update if that tag is dirtied. Otherwise, it returns the previous result.

let count = 0;

let tag = createTag();

let counter = memoizeTracked(() => {
  count++;
  consumeTag(tag);
});

counter(); // count is 1
counter(); // count still 1
dirtyTag(tag);
counter(); // count is 2

Depends on #1063

[rwjblue]

Can you update the PR description to explain what the interface is and how you expect it to be used (generally speaking)?

[rwjblue]

The feature being added here seems great to me!

In the future, let’s try to keep PRs a bit more focused. The rename of the validator exports should have been a separate PR as that change is unrelated to the feature added here; the additional review noise didn’t add value and makes the feature seem more complex than it is.

[pzuraq]

Ah, sorry about that, will definitely break things up a bit more next time!