RFR: 8233232: AArch64: jni_fast_GetLongField is broken

[Roman Kennke]

> On 10/30/19 5:45 PM, Roman Kennke wrote:
>> Is it not possible to use the gc_state Address directly in ldrb?
> 
> No, because it's a large negative offset.

Ah ok. Then it looks good.

Thanks,
Roman