RFR(XS) 8232071 Avoid shared dictionary lookup when the class name is not shared

[Jiangli Zhou]

Looks good.

Best,
Jiangli

On Wed, Oct 9, 2019 at 2:31 PM Ioi Lam <ioi.lam at oracle.com> wrote:
>
> http://cr.openjdk.java.net/~iklam/jdk14/8232071-limit-shared-dict-lookup.v01/
> https://bugs.openjdk.java.net/browse/JDK-8232071
>
> The names of all shared classes must also be a shared Symbol. To improve
> loading
> time of non-shared classes, we should avoid doing the shared dictionary
> lookup,
> if class_name->is_shared() == false.
>
> I also took the chance to re-factor the code a little.
>
> Testing: running hs-tier{1,2} now.
>
> Thanks
> - Ioi