RFR: 8156159: replace CompilerToVM.readUncompressedOop with Unsafe.getUncompressedObject

[Christian Thalinger]

Thanks, Vladimir.

> On May 9, 2016, at 9:51 AM, Vladimir Kozlov <vladimir.kozlov at oracle.com> wrote:
> 
> Looks good.
> 
> Thanks,
> Vladimir
> 
> On 5/9/16 12:22 PM, Christian Thalinger wrote:
>> 
>>> On May 9, 2016, at 9:05 AM, Vladimir Kozlov <vladimir.kozlov at oracle.com> wrote:
>>> 
>>> Please, send webrev on cr. server.
>> 
>> Grrrr :-)
>> 
>> http://cr.openjdk.java.net/~twisti/8156159/
>> 
>>> 
>>> Thanks,
>>> Vladimir
>>> 
>>> On 5/9/16 12:00 PM, Christian Thalinger wrote:
>>>> https://bugs.openjdk.java.net/browse/JDK-8156159
>>>> 
>>>> JDK-8022853 added the required methods to Unsafe.  It's time to switch over.
>>>> 
>>