RFR: 8205053: Decouple type registration from framework lifecycle

[Erik Gahlin]

Hi,

Could I have review of a fix that makes it possible to register 
checkpoint serializers independent of the JFR lifecycle. This is so 
registration can happen close to where a particular subsystem is 
initialized. For instance, the registration of the compiler phase type 
and its serialization could happen where the compiler is initialized.

Webrev:
http://cr.openjdk.java.net/~egahlin/8205053/

Bug:
https://bugs.openjdk.java.net/browse/JDK-8205053

Testing:
Tests in test/jdk/jdk/jfr

Thanks
Erik