RFR: JMC-7090: [JFR Writer] Make constant pool optional when registering a new type [v4]

[Jaroslav Bachorik]

> JMC-7090: [JFR Writer] Make constant pool optional when registering a new type

Jaroslav Bachorik has updated the pull request incrementally with one additional commit since the last revision:

  Fix test failing on windows

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

Changes:
  - all: https://git.openjdk.java.net/jmc/pull/200/files
  - new: https://git.openjdk.java.net/jmc/pull/200/files/f342cb6d..ce9d4197

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jmc&pr=200&range=03
 - incr: https://webrevs.openjdk.java.net/?repo=jmc&pr=200&range=02-03

  Stats: 5 lines in 1 file changed: 3 ins; 1 del; 1 mod
  Patch: https://git.openjdk.java.net/jmc/pull/200.diff
  Fetch: git fetch https://git.openjdk.java.net/jmc pull/200/head:pull/200

PR: https://git.openjdk.java.net/jmc/pull/200