hg: jdk/jdk: 8187078: -XX:+VerifyOops finds numerous problems when running JPRT

[dean.long at oracle.com]

Changeset: 8f594f75e054
Author:    dlong
Date:      2018-09-05 13:10 -0700
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/8f594f75e054

8187078: -XX:+VerifyOops finds numerous problems when running JPRT
Reviewed-by: kvn

! src/hotspot/share/c1/c1_LIRGenerator.cpp
! src/hotspot/share/gc/shared/c1/barrierSetC1.cpp
! src/hotspot/share/runtime/java.cpp