hg: jdk9/sandbox/jdk: 8029574: TreeMap: optimization of method computeRedLevel()

[chris.hegarty at oracle.com]

Changeset: 535b61fec549
Author:    dl
Date:      2015-11-16 10:14 -0800
URL:       http://hg.openjdk.java.net/jdk9/sandbox/jdk/rev/535b61fec549

8029574: TreeMap: optimization of method computeRedLevel()
Reviewed-by: martin, shade

! src/java.base/share/classes/java/util/TreeMap.java