Re: [whatwg/streams] assert invariants in InvokeOrNoop and friends (#584)

isonmad commented on this pull request.



> @@ -62,6 +62,10 @@ exports.IsFiniteNonNegativeNumber = v => {
 };
 
 exports.InvokeOrNoop = (O, P, args) => {
+  assert(exports.typeIsObject(O) === true);
+  assert(typeof P === 'string');
+  assert(Array.isArray(args));

The helpers were already a bit inconsistent so it's just InvokeOrNoop we'd remove it from; `PromiseInvokeOrFallbackOrNoop` never created empty Lists if `args1` or `args2` were undefined.

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