dillon1000/react

[compiler] Fix for edge cases of mutation of potentially frozen values (#33984)

Fixes two related cases of mutation of potentially frozen values.

The first is method calls on frozen values. Previously, we modeled
unknown function calls as potentially aliasing their receiver+args into
the return value. If the receiver or argument were known to be frozen,
then we would downgrade the `Alias` effect into an `ImmutableCapture`.
However, within a function expression it's possible to call a function
using a frozen value as an argument (that gets `Alias`-ed into the
return) but where we don't have the context locally to know that the
value is frozen.

This results in cases like this:

```js
const frozen = useContext(...);
useEffect(() => {
  frozen.method().property = true;
  ^^^^^^^^^^^^^^^^^^^^^^^^ cannot mutate frozen value
}, [...]);
```

Within the function we would infer:

```
t0 = MethodCall ...
  Create t0 = mutable
  Alias t0 <- frozen
t1 = PropertyStore ...
  Mutate t0
```

And then transitively infer the function expression as having a `Mutate
'frozen'` effect, which when evaluated against the outer context
(`frozen` is frozen) is an error.

The fix is to model unknown function calls as _maybe_ aliasing their
receiver/args in the return, and then considering mutations of a
maybe-aliased value to only be a conditional mutation of the source:


```
t0 = MethodCall ...
  Create t0 = mutable
  MaybeAlias t0 <- frozen // maybe alias now
t1 = PropertyStore ...
  Mutate t0
```

Then, the `Mutate t0` turns into a `MutateConditional 'frozen'`, which
just gets ignored when we process the outer context.

The second, related fix is for known mutation of phis that may be a
frozen value. The previous inference model correctly recorded these as
errors, the new model does not. We now correctly report a validation
error for this case in the new model.

---
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* #33993
* #33991
* __->__ #33984