896675c462
The JIT support for dynamically unboxing has been removed in [0]. As such all double/float32x4/float64x2/int32x4 objects are immutable and can therefore be shared across isolates. [0] https://dart-review.googlesource.com/c/sdk/+/256211 TEST=ci Change-Id: Ifd4e7c2444415b2e3b5269d9fbeb6570cc5d6768 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/273680 Reviewed-by: Ryan Macnak <rmacnak@google.com> Commit-Queue: Martin Kustermann <kustermann@google.com> Reviewed-by: Alexander Aprelev <aam@google.com>