hg: jdk/jdk: 8214442: Improve stack walk API by adding handle marks

[harold.seigel at oracle.com]

Changeset: 8f79bae1a535
Author:    hseigel
Date:      2019-01-09 09:01 -0500
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/8f79bae1a535

8214442: Improve stack walk API by adding handle marks
Summary: Add the missing handle marks.
Reviewed-by: zgu, mchung

! src/hotspot/share/classfile/javaClasses.cpp
! src/hotspot/share/prims/stackwalk.cpp