Use SameValue instead of === to check for dispatchAction equivalence

[Jessidhia]

This allows a Reducer/State that happens to hold a -0 or NaN to not bail out of the bail outs / incorrectly bail out. It's the same algorithm that is used to check the deps array in Effect/Memo/etc.

I'm not sure if this is sufficient test coverage, but it does what I expected (and, more importantly, fails if I undo the changes).

[acdlite]

This makes sense to me, since we also use Object.is semantics for PureComponent, memo, context providers, deps, and so on. Thanks for the PR!

[thomschke]

Immutable data structure libraries have their own equality check (like immutable-js).

see -> #14569 (comment)

[sudhirj]

@acdlite @Jessidhia This really needs a giant warning saying "DO NOT USE ARRAYS AS STATE!!!". This completely breaks them:

const [list, setList] = useState([])
setList((l) => {
  l.push(1)
  return l
}

is a complete fail, because Object.is sees the same array returned, absolutely nothing happens.