hg: jdk/jdk: 3 new changesets

[claes.redestad at oracle.com]

Changeset: 7121a88ab8f0
Author:    redestad
Date:      2020-06-01 21:57 +0200
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/7121a88ab8f0

8246251: Adjust HelloClasslist after JDK-8230301
Reviewed-by: mchung

! make/jdk/src/classes/build/tools/classlist/HelloClasslist.java

Changeset: 2c9d69c3e21e
Author:    redestad
Date:      2020-06-01 22:03 +0200
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/2c9d69c3e21e

8246256: GenerateLinkOptData should not mutate the interim or bootstrap JDK
Reviewed-by: erikj, ihse
Contributed-by: fedor.burdun at azul.com

! make/GenerateLinkOptData.gmk

Changeset: b32bac040145
Author:    redestad
Date:      2020-06-01 22:04 +0200
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/b32bac040145

8246152: Improve String concat bootstrapping
Reviewed-by: forax, psandoz

! src/java.base/share/classes/java/lang/invoke/StringConcatFactory.java
! test/jdk/java/lang/String/concat/StringConcatFactoryInvariants.java
+ test/micro/org/openjdk/bench/java/lang/invoke/StringConcatFactoryBootstraps.java