hg: jdk/jdk: 8204571: Add support for launching multiple startup recordings

[markus.gronlund at oracle.com]

Changeset: 857ce291c70c
Author:    mgronlun
Date:      2018-06-19 19:16 +0200
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/857ce291c70c

8204571: Add support for launching multiple startup recordings
Reviewed-by: egahlin

! src/hotspot/share/jfr/recorder/jfrRecorder.cpp
! src/hotspot/share/jfr/recorder/service/jfrOptionSet.cpp
! src/hotspot/share/jfr/recorder/service/jfrOptionSet.hpp
! test/jdk/jdk/jfr/jvm/TestLogOutput.java
+ test/jdk/jdk/jfr/startupargs/TestMultipleStartupRecordings.java