RFR(M) 8147461: Use byte offsets for vtable start and vtable length offsets

[Mikael Gerdin]

Hi Coleen,

On 2016-01-20 18:53, Coleen Phillimore wrote:
>
>
> On 1/20/16 12:22 PM, Kim Barrett wrote:
>> On Jan 20, 2016, at 9:24 AM, Coleen Phillimore
>> <coleen.phillimore at oracle.com> wrote:
>>> [,,,]  Although I thought you were going to move _vtable_len to Klass ?
>> That move comes later - see the plan discussed in [1] from Mikael’s
>> original review request.
>
> I see.  Although all the same places have to be changed from
> InstanceKlass:: to Klass::   That hopefully will be a boring code review.

Yes, it will be fairly boring.
I wanted to separate the three changes primarily for the purpose of 
getting them tested separately.

/Mikael

> Coleen
>
>>
>>>> On 2016-01-15 18:04, Mikael Gerdin wrote:
>>>>> Hi all,
>>>>>
>>>>> As per the previous discussion in mid-December[0] about moving the
>>>>> _vtable_length field to class Klass, here's the first RFR and webrev,
>>>>> according to my suggested plan[1]:
>>>>>
>>>>> […]
>>>>>
>>>>> [1]
>>>>> http://mail.openjdk.java.net/pipermail/hotspot-dev/2015-December/021224.html
>>>>>
>