The helper methods make it easier to call the JS version of
`Object.getPrototypeOf()` and `Object.getPrototypeOf()` from the
SDK libraries. The body gets inlined directly to avoid extra method
calls in potentially hot code paths.
Start using the setter when setting base and extension classes.
Issue:https://github.com/dart-lang/sdk/issues/52372
Change-Id: I6ca70cbf1936f76f24c8843e51c1c47e9bfe659c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/303009
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Commit-Queue: Nicholas Shahan <nshahan@google.com>
Nicholas Shahan
d7fc9ca3cc