Implement Array.fromAsync

[jedel1043]

This implements the Array.fromAsync proposal.
Had to create manually crafted state machines to replicate the spec.

[github-actions]

Test262 conformance changes

Test result	main count	PR count	difference
Total	50,254	50,254	0
Passed	45,007	45,101	+94
Ignored	1,728	1,634	-94
Failed	3,519	3,519	0
Panics	0	0	0
Conformance	89.56%	89.75%	+0.19%

Fixed tests (94):

test/built-ins/Array/fromAsync/mapfn-async-throws.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-arraylike-length-accessor-throws.js (previously Ignored)
test/built-ins/Array/fromAsync/this-constructor-operations.js (previously Ignored)
test/built-ins/Array/fromAsync/mapfn-sync-throws-close-sync-iterator.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-arraylike-promise.js (previously Ignored)
test/built-ins/Array/fromAsync/mapfn-async-throws-close-async-iterator.js (previously Ignored)
test/built-ins/Array/fromAsync/mapfn-result-awaited-once-per-iteration.js (previously Ignored)
test/built-ins/Array/fromAsync/non-iterable-input-element-access-err.js (previously Ignored)
test/built-ins/Array/fromAsync/non-iterable-input-with-thenable.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-array-add-to-singleton.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-uses-intrinsic-iterator-symbols.js (previously Ignored)
test/built-ins/Array/fromAsync/thisarg-omitted-strict.js (previously Ignored)
test/built-ins/Array/fromAsync/mapfn-sync-throws.js (previously Ignored)
test/built-ins/Array/fromAsync/non-iterable-with-thenable-then-method-err.js (previously Ignored)
test/built-ins/Array/fromAsync/sync-iterable-with-thenable-async-mapped-callback-err.js (previously Ignored)
test/built-ins/Array/fromAsync/non-iterable-input-with-thenable-async-mapped-callback-err.js (previously Ignored)
test/built-ins/Array/fromAsync/this-constructor-with-readonly-length.js (previously Ignored)
test/built-ins/Array/fromAsync/thisarg-object.js (previously Ignored)
test/built-ins/Array/fromAsync/async-iterable-async-mapped-awaits-once.js (previously Ignored)
test/built-ins/Array/fromAsync/sync-iterable-with-thenable-element-rejects.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-arraybuffer.js (previously Ignored)
test/built-ins/Array/fromAsync/non-iterable-input-with-thenable-sync-mapped-callback-err.js (previously Ignored)
test/built-ins/Array/fromAsync/this-constructor-with-unsettable-element-closes-async-iterator.js (previously Ignored)
test/built-ins/Array/fromAsync/this-non-constructor.js (previously Ignored)
test/built-ins/Array/fromAsync/name.js (previously Ignored)
test/built-ins/Array/fromAsync/mapfn-not-callable.js (previously Ignored)
test/built-ins/Array/fromAsync/async-iterable-input.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-array-add.js (previously Ignored)
test/built-ins/Array/fromAsync/non-iterable-input-with-thenable-async-mapped-awaits-callback-result-once.js (previously Ignored)
test/built-ins/Array/fromAsync/mapfn-async-iterable-sync.js (previously Ignored)
test/built-ins/Array/fromAsync/this-constructor-with-bad-length-setter.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-iterator-exists.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-function.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-boolean.js (previously Ignored)
test/built-ins/Array/fromAsync/length.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-iterator-not-callable.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-arraylike-holes.js (previously Ignored)
test/built-ins/Array/fromAsync/non-iterable-with-thenable-async-mapped-awaits-once.js (previously Ignored)
test/built-ins/Array/fromAsync/non-iterable-with-non-promise-thenable.js (previously Ignored)
test/built-ins/Array/fromAsync/not-a-constructor.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-asynciterator-throws.js (previously Ignored)
test/built-ins/Array/fromAsync/sync-iterable-with-thenable-sync-mapped-callback-err.js (previously Ignored)
test/built-ins/Array/fromAsync/returns-promise.js (previously Ignored)
test/built-ins/Array/fromAsync/non-iterable-with-thenable-sync-mapped-awaits-once.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-symbol.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-asynciterator-null.js (previously Ignored)
test/built-ins/Array/fromAsync/async-iterable-input-does-not-await-input.js (previously Ignored)
test/built-ins/Array/fromAsync/mapfn-async-arraylike.js (previously Ignored)
test/built-ins/Array/fromAsync/sync-iterable-input-with-non-promise-thenable.js (previously Ignored)
test/built-ins/Array/fromAsync/mapfn-sync-arraylike.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-arraylike-too-long.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-number.js (previously Ignored)
test/built-ins/Array/fromAsync/this-constructor-with-unsettable-element-closes-sync-iterator.js (previously Ignored)
test/built-ins/Array/fromAsync/mapfn-async-iterable-async.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-iterator-null.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-array-add-to-empty.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-string.js (previously Ignored)
test/built-ins/Array/fromAsync/prop-desc.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-asynciterator-exists.js (previously Ignored)
test/built-ins/Array/fromAsync/sync-iterable-with-thenable-async-mapped-awaits-once.js (previously Ignored)
test/built-ins/Array/fromAsync/sync-iterable-with-thenable-sync-mapped-awaits-once.js (previously Ignored)
test/built-ins/Array/fromAsync/this-constructor-with-readonly-elements.js (previously Ignored)
test/built-ins/Array/fromAsync/sync-iterable-with-thenable-awaits-once.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-asynciterator-sync.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-array-remove.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-iterator-promise.js (previously Ignored)
test/built-ins/Array/fromAsync/non-iterable-input.js (previously Ignored)
test/built-ins/Array/fromAsync/mapfn-sync-throws-close-async-iterator.js (previously Ignored)
test/built-ins/Array/fromAsync/mapfn-async-throws-close-sync-iterator.js (previously Ignored)
test/built-ins/Array/fromAsync/sync-iterable-iteration-err.js (previously Ignored)
test/built-ins/Array/fromAsync/non-iterable-input-does-not-use-array-prototype.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-iterator-throws.js (previously Ignored)
test/built-ins/Array/fromAsync/mapfn-sync-iterable-async.js (previously Ignored)
test/built-ins/Array/fromAsync/non-iterable-sync-mapped-callback-err.js (previously Ignored)
test/built-ins/Array/fromAsync/this-constructor.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-null-undefined.js (previously Ignored)
test/built-ins/Array/fromAsync/thisarg-omitted-sloppy.js (previously Ignored)
test/built-ins/Array/fromAsync/async-iterable-input-iteration-err.js (previously Ignored)
test/built-ins/Array/fromAsync/builtin.js (previously Ignored)
test/built-ins/Array/fromAsync/non-iterable-input-with-thenable-element-rejects.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-asynciterator-not-callable.js (previously Ignored)
test/built-ins/Array/fromAsync/sync-iterable-with-thenable-then-method-err.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-object-not-arraylike.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-array-mutate.js (previously Ignored)
test/built-ins/Array/fromAsync/non-iterable-with-thenable-awaits-once.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-bigint.js (previously Ignored)
test/built-ins/Array/fromAsync/this-constructor-with-unsettable-element.js (previously Ignored)
test/built-ins/Array/fromAsync/sync-iterable-input-with-thenable.js (previously Ignored)
test/built-ins/Array/fromAsync/returned-promise-resolves-to-array.js (previously Ignored)
test/built-ins/Array/fromAsync/mapfn-sync-iterable-sync.js (previously Ignored)
test/built-ins/Array/fromAsync/sync-iterable-input.js (previously Ignored)
test/built-ins/Array/fromAsync/thisarg-primitive-strict.js (previously Ignored)
test/built-ins/Array/fromAsync/thisarg-primitive-sloppy.js (previously Ignored)
test/built-ins/Array/fromAsync/asyncitems-operations.js (previously Ignored)

[raskad]

Really nice implementation!