hg: jdk/sandbox: 8207359: Make SymbolTable increment_refcount disallow zero

[chris.hegarty at oracle.com]

Changeset: 516acf6956a2
Author:    coleenp
Date:      2018-07-20 14:52 -0400
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/516acf6956a2

8207359: Make SymbolTable increment_refcount disallow zero
Summary: Use cmpxchg for non permanent symbol refcounting, and pack refcount and length into an int.
Reviewed-by: gziemski, kbarrett, iklam

! make/hotspot/src/native/dtrace/generateJvmOffsets.cpp
! src/hotspot/os/solaris/dtrace/jhelper.d
! src/hotspot/share/classfile/compactHashtable.inline.hpp
! src/hotspot/share/classfile/symbolTable.cpp
! src/hotspot/share/classfile/systemDictionary.cpp
! src/hotspot/share/oops/symbol.cpp
! src/hotspot/share/oops/symbol.hpp
! src/hotspot/share/runtime/vmStructs.cpp
! src/java.base/solaris/native/libjvm_db/libjvm_db.c
! src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/oops/Symbol.java
! test/hotspot/gtest/classfile/test_symbolTable.cpp
+ test/hotspot/gtest/threadHelper.inline.hpp
! test/hotspot/gtest/utilities/test_concurrentHashtable.cpp
! test/hotspot/gtest/utilities/test_globalCounter.cpp
- test/hotspot/gtest/utilities/utilitiesHelper.inline.hpp