hg: jdk/hs: 8200362: G1Mux2Closure should disable implicit oop verification

[thomas.schatzl at oracle.com]

Changeset: 5a757c0326c7
Author:    tschatzl
Date:      2018-03-29 17:15 +0200
URL:       http://hg.openjdk.java.net/jdk/hs/rev/5a757c0326c7

8200362: G1Mux2Closure should disable implicit oop verification
Summary: To avoid the implicit oop verification provided by OopClosure and oop_iterate_no_header, let G1 verification closures inherit from ExtendedOopClosures and disable this verification.
Reviewed-by: stefank, sjohanss

! src/hotspot/share/gc/g1/heapRegion.cpp