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Joe Savona
41f52b73c2
I realized we hadn't updated InferReferenceEffects to match our latest thinking on hooks. Specifically, we will default to assuming that hooks can mutate their arguments and return mutable values — this works with our model since we don't treat hooks specially for reactive scope construction. Ie, first we figure out what variables construct together, then we create scopes, then we prune scopes that contain hooks. So changing the reference effects for hooks "just works". Note that it is helpful for our unit tests to have an example hook that we know _does_ freeze its input and return a frozen value, so i've temporarily added `useFreeze()` to the list of defined hooks. That is meant as a stopgap: the right solution is to allow some way to tell the compiler about specific custom hooks and their semantics.