c5935aa16e
This CL makes it so that the default Service ID zone of an Isolate will now be stored in a MallocGrowableArray, in preparation for adding the ability for Isolates to each store multiple Service ID zones. TEST=CI Issue: https://github.com/dart-lang/sdk/issues/55869 Change-Id: Ie729c1854faac1f61a466ae893ee8ad0a2128499 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/379543 Reviewed-by: Ben Konyi <bkonyi@google.com> Commit-Queue: Derek Xu <derekx@google.com>