Move asan_fake_stack_handle to EC, not thread
It's really a property of the EC; each fiber (which has its own EC) also has its own asan_fake_stack_handle.
[Bug #20310]
Move asan_fake_stack_handle to EC, not thread
It's really a property of the EC; each fiber (which has its own EC) also
has its own asan_fake_stack_handle.
[Bug #20310]