hg: jdk9/hs-rt/hotspot: 8151604: Rely on options range checking rather than explict checks

[bengt.rutisson at oracle.com]

Changeset: e928b4b9e4ea
Author:    brutisso
Date:      2016-03-13 13:26 +0100
URL:       http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/e928b4b9e4ea

8151604: Rely on options range checking rather than explict checks
Reviewed-by: jwilhelm, drwhite, sangheki

! src/share/vm/gc/cms/concurrentMarkSweepGeneration.cpp
! src/share/vm/gc/g1/g1CollectorPolicy.cpp