hg: jdk/jdk: 8246135: Save important GC log lines and print them when dumping hs_err files

[stefan.karlsson at oracle.com]

Changeset: 91444da4b277
Author:    stefank
Date:      2020-06-03 14:30 +0200
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/91444da4b277

8246135: Save important GC log lines and print them when dumping hs_err files
Reviewed-by: sjohanss, pliden, eosterlund

+ src/hotspot/share/gc/shared/gcLogPrecious.cpp
+ src/hotspot/share/gc/shared/gcLogPrecious.hpp
! src/hotspot/share/memory/universe.cpp
! src/hotspot/share/utilities/vmError.cpp