git: openjdk/mobile: 8242314: use reproducible random in vmTestbase shared code

[duke]

Changeset: 6ff66db5
Author:    Igor Ignatyev <iignatyev at openjdk.org>
Date:      2020-04-28 20:49:28 +0000
URL:       https://git.openjdk.java.net/mobile/commit/6ff66db5

8242314: use reproducible random in vmTestbase shared code

Reviewed-by: kbarrett, lmesnik

! test/hotspot/jtreg/vmTestbase/ExecDriver.java
! test/hotspot/jtreg/vmTestbase/nsk/share/gc/NonbranchyTree.java
! test/hotspot/jtreg/vmTestbase/nsk/share/jdi/SerialExecutionDebugger.java
! test/hotspot/jtreg/vmTestbase/nsk/share/runner/RunParams.java
! test/hotspot/jtreg/vmTestbase/nsk/share/test/LocalRandom.java
! test/hotspot/jtreg/vmTestbase/nsk/sysdict/share/SysDictTest.java
! test/hotspot/jtreg/vmTestbase/vm/share/RandomEx.java