[lworld] RFR: 8281463: [lworld] VALUE / PRIMITIVE modifiers should be supported by reflection [v5]

[Roger Riggs]

> Add support to java.lang.reflect.AccessFlag ACC_IDENTITY, ACC_VALUE, and ACC_PRIMITIVE.
> Added corresponding flags to j.l.reflect.Modifier so the "source" of the AccessFlag is the Modifer mask.
> Remove PERMITS_VALUE; moving the definition used by HotSpot to HotSpot code.
> 
> Add comments to java.l.reflect.Modifier suggesting use of AccessFlag instead and limitations.

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

  Revert changes and simplify
  Update GenericStringTest to work with value and primitive classes.

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Changes:
  - all: https://git.openjdk.java.net/valhalla/pull/698/files
  - new: https://git.openjdk.java.net/valhalla/pull/698/files/9af6875e..cab6cae4

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=valhalla&pr=698&range=04
 - incr: https://webrevs.openjdk.java.net/?repo=valhalla&pr=698&range=03-04

  Stats: 40 lines in 6 files changed: 12 ins; 16 del; 12 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/698.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/698/head:pull/698

PR: https://git.openjdk.java.net/valhalla/pull/698