hg: jdk/submit: 8216136: Take Compile_lock for SystemDictionary::_modification_counter with safepoint check

[coleen.phillimore at oracle.com]

Changeset: 1d953ae4d39f
Author:    coleenp
Date:      2019-01-24 08:44 -0500
URL:       http://hg.openjdk.java.net/jdk/submit/rev/1d953ae4d39f

8216136: Take Compile_lock for SystemDictionary::_modification_counter with safepoint check
Summary: Transition compiler thread from native to VM state to check the Compile_lock with safepoint always.
Reviewed-by: dlong, eosterlund, dholmes

! src/hotspot/share/ci/ciEnv.cpp
! src/hotspot/share/ci/ciEnv.hpp
! src/hotspot/share/opto/callGenerator.cpp
! src/hotspot/share/opto/parse1.cpp
! src/hotspot/share/runtime/mutexLocker.cpp