hg: jdk/sandbox: Improve test coverage for RecordingStream::enable(...) and RecordingStream:disable(...)

[erik.gahlin at oracle.com]

Changeset: 849a45ac808a
Author:    egahlin
Date:      2019-09-27 13:20 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/849a45ac808a

Improve test coverage for RecordingStream::enable(...) and RecordingStream:disable(...)

! test/jdk/jdk/jfr/api/consumer/recordingstream/TestDisable.java
! test/jdk/jdk/jfr/api/consumer/recordingstream/TestEnable.java