dillon1000/react

[compiler] Improve merging of scopes that invalidate together (#34049)

We try to merge consecutive reactive scopes that will always invalidate
together, but there's one common case that isn't handled.

```js
const y = [[x]];
```

Here we'll create two consecutive scopes for the inner and outer array
expressions. Because the input to the second scope is a temporary,
they'll merge into one scope.

But if we name the inner array, the merging stops:

```js
const array = [x];
const y = [array];
```

This is because the merging logic checks if all the dependencies of the
second scope are outputs of the first scope, but doesn't account for
renaming due to LoadLocal/StoreLocal. The fix is to track these
temporaries.

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* __->__ #34049
* #34047
* #34044