hg: jdk/sandbox: Fix issue with statistics which caused Metaspace::used_words() to be too high

[thomas.stuefe at gmail.com]

Changeset: e3aa9f95b85e
Author:    stuefe
Date:      2019-10-07 15:48 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/e3aa9f95b85e

Fix issue with statistics which caused Metaspace::used_words() to be too high

! src/hotspot/share/memory/metaspace/spaceManager.cpp