[lworld] RFR: 8286491: Withdraw ValueObject and IdentityObject and introduce value and identity class modifiers [v5]

[Srikanth Adayapalam]

> Changes to javac, hotspot runtime, core libs and asmtools sources and tests

Srikanth Adayapalam has updated the pull request incrementally with one additional commit since the last revision:

  Fix failing tier1 langtools test tools/javac/ClassFileModifiers/ClassModifiers.java

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Changes:
  - all: https://git.openjdk.java.net/valhalla/pull/688/files
  - new: https://git.openjdk.java.net/valhalla/pull/688/files/09786c64..5b6df93e

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=valhalla&pr=688&range=04
 - incr: https://webrevs.openjdk.java.net/?repo=valhalla&pr=688&range=03-04

  Stats: 124 lines in 3 files changed: 0 ins; 7 del; 117 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/688.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/688/head:pull/688

PR: https://git.openjdk.java.net/valhalla/pull/688