da0ba8eb5c
Also fix XMM1/FA1/D1/D2/D3 getting clobbered for isolate-group bound callbacks and sync-ownership callbacks. TEST=msan Bug: https://github.com/dart-lang/sdk/issues/62816 Change-Id: Id721825fdec1984189051ea1c5cc73791bad53be Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/485300 Reviewed-by: Liam Appelbe <liama@google.com> Commit-Queue: Ryan Macnak <rmacnak@google.com>