hg: jdk/sandbox: 8214556: Crash in DependencyContext::remove_dependent_nmethod still happens

[chris.hegarty at oracle.com]

Changeset: 022420a4cc63
Author:    eosterlund
Date:      2018-12-04 17:14 +0100
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/022420a4cc63

8214556: Crash in DependencyContext::remove_dependent_nmethod still happens
Reviewed-by: kvn, kbarrett

! src/hotspot/share/code/dependencyContext.cpp
! src/hotspot/share/code/dependencyContext.hpp
! src/hotspot/share/prims/methodHandles.cpp