[lworld] RFR: 8326719: [lworld] Migrate core-libs support to JEP 401 (part 1) [v3]

[Mandy Chung]

> This patch includes:
> - Removal of support for secondary mirror
> - Removal of support for primitive classes
> - Removal of support for value factories 
> - Removal of the intrinsic methods `Class::asPrimitiveType` and `asValueType`
> 
> This patch includes a temporary fix of `Class::isValue` which will be replaced by #1019.

Mandy Chung has updated the pull request incrementally with one additional commit since the last revision:

  update comment

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Changes:
  - all: https://git.openjdk.org/valhalla/pull/1020/files
  - new: https://git.openjdk.org/valhalla/pull/1020/files/d601ef26..ffae4420

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=valhalla&pr=1020&range=02
 - incr: https://webrevs.openjdk.org/?repo=valhalla&pr=1020&range=01-02

  Stats: 2 lines in 1 file changed: 0 ins; 2 del; 0 mod
  Patch: https://git.openjdk.org/valhalla/pull/1020.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1020/head:pull/1020

PR: https://git.openjdk.org/valhalla/pull/1020