RFR[T]: 8233495: Some fieldDescriptor methods can pass existing constantPoolHandle

[Lois Foltan]

Looks good Claes.  However, because the change is subtle, probably not 
trivial.
Lois

On 11/4/2019 9:49 AM, Claes Redestad wrote:
> Hi,
>
> (trivial?) patch to avoid dereferencing and then subsequent implicit re-
> handleificiation of a constantPoolHandle in two places in
> fieldDescriptor.inline.hpp. This has a minor impact on field resolution
> overhead in various places.
>
> Bug:    https://bugs.openjdk.java.net/browse/JDK-8233495
> Webrev: http://cr.openjdk.java.net/~redestad/8233495/open.00/
>
> Testing: tier1
>
> Thanks!
>
> /Claes