[lworld] RFR: 8266586: [lworld] [lw3] Remove experimental support for primitive classes in JPDA [v2]

[Frederic Parain]

> Remove experimental support for primitive classes in Java debugger in anticipation of a merge with mainline.
> At some point the whole JPDA (JDI/JDWP/JVMTI) will have to be updated (specifications and implementations) to fully support primitive classes.
> 
> Regards,
> 
> Fred

Frederic Parain has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains four commits:

 - Merge lworld
 - More cleanup
 - Merge remote-tracking branch 'upstream/lworld' into jpda_cleanup
 - Remove experimental primitive class support in JPDA

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Changes: https://git.openjdk.java.net/valhalla/pull/404/files
 Webrev: https://webrevs.openjdk.java.net/?repo=valhalla&pr=404&range=01
  Stats: 245 lines in 11 files changed: 0 ins; 236 del; 9 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/404.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/404/head:pull/404

PR: https://git.openjdk.java.net/valhalla/pull/404