hg: jdk-updates/jdk11u-dev: 8224193: stringStream should not use Resouce Area

[christoph.langer at sap.com]

Changeset: 6421c819cd67
Author:    stuefe
Date:      2019-05-22 09:33 +0200
URL:       https://hg.openjdk.java.net/jdk-updates/jdk11u-dev/rev/6421c819cd67

8224193: stringStream should not use Resouce Area
Reviewed-by: goetz, coleenp, dholmes

! src/hotspot/share/utilities/ostream.cpp
! src/hotspot/share/utilities/ostream.hpp
+ test/hotspot/gtest/utilities/test_ostream.cpp