hg: jdk9/hs/hotspot: 8172169: Re-examine String field optionality

[claes.redestad at oracle.com]

Changeset: dcb26b8ad997
Author:    redestad
Date:      2017-01-03 21:36 +0100
URL:       http://hg.openjdk.java.net/jdk9/hs/hotspot/rev/dcb26b8ad997

8172169: Re-examine String field optionality
Reviewed-by: kvn, thartmann

! src/share/vm/classfile/javaClasses.cpp
! src/share/vm/classfile/javaClasses.hpp
! src/share/vm/classfile/javaClasses.inline.hpp
! src/share/vm/opto/graphKit.cpp