RFR (XS): [MVT] Support Q-types in MHs.constant()

[Vladimir Ivanov]

Thanks, Paul & Maurizio.

> Looks good.
> 
> Should the test assert on the type of the MH to check the return type is a Q type?
Well, it won't be excessive for sure :-) I'll add one.

Best regards,
Vladimir Ivanov

> 
> Paul.
> 
>> On 11 Jul 2017, at 10:43, Vladimir Ivanov <vladimir.x.ivanov at oracle.com> wrote:
>>
>> http://cr.openjdk.java.net/~vlivanov/valhalla/8184184/webrev.00/
>>
>> Support Q-types in MHs.constant().
>>
>> Testing: jdk/test/valhalla/mvt/
>>
>> Best regards,
>> Vladimir Ivanov
>