dillon1000/react

Don't let error boundaries catch errors during hydration (#28675)

When an error boundary catches an error during hydration it'll try to
render the error state which will then try to hydrate that state,
causing hydration warnings.

When an error happens inside a Suspense boundary during hydration, we
instead let the boundary catch it and restart a client render from
there. However, when it's in the root we instead let it fail the root
and do the sync recovery pass. This didn't consider that we might hit an
error boundary first so this just skips the error boundary in that case.

We should probably instead let the root do a concurrent client render in
this same pass instead to unify with Suspense boundaries.