RFR (XS) 8222297: IRT_ENTRY/IRT_LEAF etc are the same as JRT

[Lois Foltan]

Looks good.
Lois

On 4/11/2019 11:39 AM, coleen.phillimore at oracle.com wrote:
> Summary: Replace IRT entry points with JRT.
>
> Tested with hs tier1-3 and built zero.  And grepped from the right 
> level directory this time.
>
> open webrev at http://cr.openjdk.java.net/~coleenp/2019/8222297.01/webrev
> bug link https://bugs.openjdk.java.net/browse/JDK-8222297
>
> Thanks,
> Coleen