hg: jdk/submit: 8217442: Optimize native accesses to String.value

[claes.redestad at oracle.com]

Changeset: bc2bb4eee477
Author:    redestad
Date:      2019-01-22 11:22 +0100
URL:       http://hg.openjdk.java.net/jdk/submit/rev/bc2bb4eee477

8217442: Optimize native accesses to String.value
Reviewed-by: shade, dholmes

! src/hotspot/share/classfile/javaClasses.cpp
! src/hotspot/share/classfile/javaClasses.hpp
! src/hotspot/share/classfile/javaClasses.inline.hpp
! src/hotspot/share/jfr/jni/jfrJavaSupport.cpp
! src/hotspot/share/prims/jni.cpp