hg: jdk/sandbox: 8217450: Add PackageEntry::locked_lookup_only

[chris.hegarty at oracle.com]

Changeset: 5c2c9555afc1
Author:    redestad
Date:      2019-01-23 09:52 +0100
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/5c2c9555afc1

8217450: Add PackageEntry::locked_lookup_only
Reviewed-by: dholmes, shade, lfoltan

! src/hotspot/share/classfile/modules.cpp
! src/hotspot/share/classfile/packageEntry.cpp
! src/hotspot/share/classfile/packageEntry.hpp