RFR: 8253235: JFR.dump does not respect maxage parameter

[Ekaterina Vergizova]

JFR.dump command creates a clone of the original recording, but maxage and maxsize parameters are not copied to the
clone in PlatformRecording.newSnapshotClone(). When PlatformRecording.appendChunk() is called for the clone to append
the latest data, trimToAge() and trimToSize() are not performed because maxAge and maxSize are not set. Therefore the
clone sometimes dumps outdated chunks to the disk.

Testing:
jdk/jdk/jfr/*

-------------

Commit messages:
 - 8253235: JFR.dump does not respect maxage parameter

Changes: https://git.openjdk.java.net/jdk/pull/239/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=239&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8253235
  Stats: 2 lines in 1 file changed: 2 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/239.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/239/head:pull/239

PR: https://git.openjdk.java.net/jdk/pull/239