hg: jdk/hs: 8191049: Add alternate version of pns() that is callable from within hotspot source

[chris.plummer at oracle.com]

Changeset: fa736014cf28
Author:    cjplummer
Date:      2017-11-14 18:08 -0800
URL:       http://hg.openjdk.java.net/jdk/hs/rev/fa736014cf28

8191049: Add alternate version of pns() that is callable from within hotspot source
Summary: added pns2() to debug.cpp
Reviewed-by: stuefe, gthornbr

! src/hotspot/share/utilities/debug.cpp