Warning multiple evaluation of a single effectful computation at the development mode

[ENvironmentSet]

All the functions of hyogwa assume that given generators representing effectful computation are 'fresh' (i.e. never executed after the creation). Therefore, passing around effectful computation that was already evaluated have high possibility to cause unsound results. For this problem, we can help the users not to make invariants by adding invariant checkers that work at development mode.

function* foo() {
  const bar = baz()

  yield* bar
  yield* bar // this can be problemetic
}