hg: jdk/submit11: JDK-8209670: CompilerThread releases code buffer in destructor is unsafe

[zgu at redhat.com]

Changeset: 2b33e09cbd37
Author:    zgu
Date:      2018-08-19 21:48 -0400
URL:       http://hg.openjdk.java.net/jdk/submit11/rev/2b33e09cbd37

JDK-8209670: CompilerThread releases code buffer in destructor is unsafe

! src/hotspot/share/runtime/thread.cpp
! src/hotspot/share/runtime/thread.hpp