[lworld] RFR: 8294051: [lworld] runtime/AccModule/ConstModule.java fails with incorrect error message [v2]

[Coleen Phillimore]

> This change moves code back to match mainline that checks access flags and checks for invalid JVM_CONSTANTS_Module/Package before reading the class name out of the constant pool.
> Tested with tier1-3.

Coleen Phillimore has updated the pull request incrementally with one additional commit since the last revision:

  Remove extra error message printing for inner classes not in mainline.

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Changes:
  - all: https://git.openjdk.org/valhalla/pull/1550/files
  - new: https://git.openjdk.org/valhalla/pull/1550/files/2e7eaff4..b0dda156

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=valhalla&pr=1550&range=01
 - incr: https://webrevs.openjdk.org/?repo=valhalla&pr=1550&range=00-01

  Stats: 23 lines in 2 files changed: 0 ins; 12 del; 11 mod
  Patch: https://git.openjdk.org/valhalla/pull/1550.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1550/head:pull/1550

PR: https://git.openjdk.org/valhalla/pull/1550