hg: jdk/hs: 8180280: [TESTBUG] Test for JDK-8180048

[thomas.schatzl at oracle.com]

Changeset: a8ab9344dab6
Author:    tschatzl
Date:      2018-01-11 11:05 +0100
URL:       http://hg.openjdk.java.net/jdk/hs/rev/a8ab9344dab6

8180280: [TESTBUG] Test for JDK-8180048
Summary: Add test at is executed only at higher tiers to allow more time for execution.
Reviewed-by: kbarrett, eosterlund

+ test/hotspot/jtreg/gc/stress/TestReclaimStringsLeaksMemory.java