This removes our temporary scaffolding support for JIT isolate groups
(which was implemented by creating a new isolate group, loading the
application kernel into it and then merging the heap into the original
isolate group - maintaining a different object store)
It makes all isolates within a group share the same object store, same
libraries and JITed code. It will be conservative to start with, only
allow running unoptimized code, etc.
We will gradually remove the restrictions imposed by this CL:
https://dart-review.googlesource.com/c/sdk/+/173970
Issue https://github.com/dart-lang/sdk/issues/36097
TEST=Tests using --enable-isolate-groups with JIT sharing.
Change-Id: I2bf69a6fe3c905067c4cec2e81613f731c52e5ee
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/175302
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Alexander Aprelev <aam@google.com>
Martin Kustermann
425780f410