RFR: 8245283: JFR: Can't handle constant dynamic used by Jacoco agent

[Erik Gahlin]

Hi,

Could I have a review of a fix that skips over CONSTANT_Dynamic_info when JFR parses an event subclass.

Bug:
https://bugs.openjdk.java.net/browse/JDK-8245283

Webrev:
http://cr.openjdk.java.net/~egahlin/8245283/

JVM spec:
https://docs.oracle.com/javase/specs/jvms/se11/html/jvms-4.html#jvms-4.4.10

Testing: tier1 + tier2 + jdk/jdk/jfr + Jacoco agent reproducer

Thanks
Erik