Add EMPTY type to PromiseResult

[mobius29]

The PromisResult Type was updated in tc39/ecma262#3491, but this change has not yet been incorporated into esmeta.

As a result, the following type mismatch occurs, even though the Object structurally satisfies the Promise type

[ParamTypeMismatch] Call[35542] argument assignment to first parameter _promise_ when Call[35542] function call from INTRINSICS.yet:PromiseRejectFunction (step 7, 8:24(412)-8:58(446)) to RejectPromise
- expected: Record[Promise]
- actual  : Record[Object { DefineOwnProperty: Clo["Record[OrdinaryObject].DefineOwnProperty"], Delete: Clo["Record[OrdinaryObject].Delete"], Extensible: Boolean, Get: Clo["Record[OrdinaryObject].Get"], GetOwnProperty: Clo["Record[OrdinaryObject].GetOwnProperty"], GetPrototypeOf: Clo["Record[OrdinaryObject].GetPrototypeOf"], HasProperty: Clo["Record[OrdinaryObject].HasProperty"], IsExtensible: Clo["Record[OrdinaryObject].IsExtensible"], OwnPropertyKeys: Clo["Record[OrdinaryObject].OwnPropertyKeys"], PreventExtensions: Clo["Record[OrdinaryObject].PreventExtensions"], PrivateElements: Nil, PromiseFulfillReactions: List[Record[PromiseReactionRecord { Capability: Record[PromiseCapabilityRecord], Handler: Enum[~empty~], Type: Enum[~fulfill~] }]], PromiseIsHandled: Boolean, PromiseRejectReactions: List[Record[PromiseReactionRecord { Capability: Record[PromiseCapabilityRecord], Handler: Record[JobCallbackRecord], Type: Enum[~reject~] }]], PromiseResult: Enum[~empty~], PromiseState: Enum[~pending~], Prototype: Record[OrdinaryObject], Set: Clo["Record[OrdinaryObject].Set"], SetPrototypeOf: Clo["Record[OrdinaryObject].SetPrototypeOf"], __MAP__: Map }]

This PR updates esmeta to incorporate and reflect that change.