fn_import_exception_test flakey on mac about wasm HOT 4 CLOSED

00:03 +11 -1: test/fn_import_exception_test.dart: exception thrown from imported function [E]
  Expected: throws _Exception:<Exception: Hello exception!>
    Actual: <Closure: () => dynamic>
     Which: threw WasmError:<WasmError:This case is not (yet) supported. Please file an issue on pkg:wasm.>
            stack package:wasm/src/runtime.g.dart 544:9     WasmRuntime.maybeThrowTrap
                  package:wasm/src/runtime.g.dart 614:5     WasmRuntime.call
                  package:wasm/src/module.dart 417:13       WasmFunction.apply
                  package:wasm/src/module.dart 439:14       WasmFunction.noSuchMethod
                  test/fn_import_exception_test.dart 39:20  main.<fn>.<fn>
                  package:test_api                          expect
                  test/fn_import_exception_test.dart 39:5   main.<fn>

  package:test_api                         expect
  test/fn_import_exception_test.dart 39:5  main.<fn>

00:03 +11 -1: loading test/fn_import_exception_test.dart
Consider enabling the flag chain-stack-traces to receive more detailed exceptions.
For example, 'pub run test --chain-stack-traces'.

===== CRASH =====
si_signo=Segmentation fault: 11(11), si_code=0, si_addr=0x0
version=2.14.0-176.0.dev (dev) (Wed Jun 2 15:17:55 2021 -0700) on "macos_x64"
pid=29978, thread=9987, isolate_group=(nil)(0x0), isolate=(nil)(0x0)
isolate_instructions=0, vm_instructions=10ab89a60
  pc 0x000000011c8b9182 fp 0x0000700004208de0 wasm_trap_delete+0x12
  pc 0x000000010b2da187 fp 0x0000700004208e20 dart::FinalizablePersistentHandle::Finalize(dart::IsolateGroup*, dart::FinalizablePersistentHandle*)+0x67
  pc 0x000000010ad3847d fp 0x0000700004208e80 dart::IsolateGroup::~IsolateGroup()+0xdd
  pc 0x000000010ad38f90 fp 0x0000700004208eb0 dart::IsolateGroup::Shutdown()+0xd0
  pc 0x000000010ae8f158 fp 0x0000700004208f30 dart::ThreadPool::WorkerLoop(dart::ThreadPool::Worker*)+0x148
  pc 0x000000010ae8f59d fp 0x0000700004208f60 dart::ThreadPool::Worker::Main(unsigned long)+0x5d
  pc 0x000000010adf656f fp 0x0000700004208fb0 dart::OSThread::GetMaxStackSize()+0xaf
  pc 0x00007fff20352954 fp 0x0000700004208fd0 _pthread_start+0xe0
  pc 0x00007fff2034e4a7 fp 0x0000700004208ff0 thread_start+0xf
-- End of DumpStackTrace
[1]    29978 abort      dart test