awaitoperations to stage 1.
JSON.parsesource text access to stage 2.
Record & Tuple to stage 2.
.itemon method on all the built-in indexables to stage 2.
JSON Modules split out from Import Conditions at stage 2.
Intl.Segmenter: Unicode segmentation to stage 3.
Numeric Separators to stage 4.
Logical Assignment to stage 4.
WeakRefs to stage 4.
timeStyleto stage 4.
Intl.ListFormatto stage 4.
AggregateErrorto stage 4.