hg: jdk/sandbox: 8202373: Forcing eager initialization of CHM$ReservationNode avoids deoptimization

[chris.hegarty at oracle.com]

Changeset: 7fed08d588b5
Author:    dl
Date:      2018-05-01 06:18 -0700
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/7fed08d588b5

8202373: Forcing eager initialization of CHM$ReservationNode avoids deoptimization
Reviewed-by: martin, psandoz, dholmes, redestad

! src/java.base/share/classes/java/util/concurrent/ConcurrentHashMap.java