[lworld] RFR: 8282106: [lworld] IdentityException should identify the value class [v3]

[Frederic Parain]

> Improve the message of IdentityException by including the class of the instance that triggered the exception.

Frederic Parain has updated the pull request incrementally with one additional commit since the last revision:

  Fix test

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Changes:
  - all: https://git.openjdk.org/valhalla/pull/1150/files
  - new: https://git.openjdk.org/valhalla/pull/1150/files/866b2b0d..6d96f353

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=valhalla&pr=1150&range=02
 - incr: https://webrevs.openjdk.org/?repo=valhalla&pr=1150&range=01-02

  Stats: 14 lines in 1 file changed: 0 ins; 0 del; 14 mod
  Patch: https://git.openjdk.org/valhalla/pull/1150.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1150/head:pull/1150

PR: https://git.openjdk.org/valhalla/pull/1150