[lworld] RFR: 8287692: Move Class primitive APIs to jdk.internal.value.PrimitiveClass [v8]

[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 with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains 11 additional commits since the last revision:

 - Merge branch 'lworld' into 8287692-rebased-primitive-class
 - Correct HeapDump printing of primitive class of a field.
 - Merge branch 'lworld' into 8287692-rebased-primitive-class
 - whitespace cleanup
 - Include missing import/module
 - fix broken declaration
 - Cleanup whitespace
 - Cleanup PrimitiveClass declarations and fix compilation failures
 - Reverted unintentional whitespace changes
 - Cleanup based on review comments.
 - ... and 1 more: https://git.openjdk.org/valhalla/compare/fc3ea52a...7c897173

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

Changes:
  - all: https://git.openjdk.org/valhalla/pull/752/files
  - new: https://git.openjdk.org/valhalla/pull/752/files/aae5292b..7c897173

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=valhalla&pr=752&range=07
 - incr: https://webrevs.openjdk.org/?repo=valhalla&pr=752&range=06-07

  Stats: 192 lines in 226 files changed: 83 ins; 100 del; 9 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