[lworld] RFR: 8287692: Move Class primitive APIs to jdk.internal.value.PrimitiveClass [v3]

[Roger Riggs]

> Move Class primitive APIs to jdk.internal.value.PrimitiveClass.
> 
> Update hotspot tests to use PrimitiveClass instead of Class.xxx methods.
> Add imports of jdk.internal.value.PrimitiveClass
> Add --add-exports java.base/jdk.internal.value=ALL-UNNAMED

Roger Riggs has updated the pull request incrementally with one additional commit since the last revision:

  Reverted unintentional whitespace changes

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Changes:
  - all: https://git.openjdk.org/valhalla/pull/752/files
  - new: https://git.openjdk.org/valhalla/pull/752/files/f9f1f7d4..5d6340e9

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=valhalla&pr=752&range=02
 - incr: https://webrevs.openjdk.org/?repo=valhalla&pr=752&range=01-02

  Stats: 20 lines in 1 file changed: 1 ins; 5 del; 14 mod
  Patch: https://git.openjdk.org/valhalla/pull/752.diff
  Fetch: git fetch https://git.openjdk.org/valhalla pull/752/head:pull/752

PR: https://git.openjdk.org/valhalla/pull/752