[lworld] Integrated: 8261721: [lworld] Javac messages still refer to inline types

[Srikanth Adayapalam]

Fix message keys and text; adjust sources and tests accordingly.

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Commit messages:
 - 8261721: [lworld] Javac messages still refer to inline types

Changes: https://git.openjdk.java.net/valhalla/pull/334/files
 Webrev: https://webrevs.openjdk.java.net/?repo=valhalla&pr=334&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8261721
  Stats: 135 lines in 27 files changed: 10 ins; 10 del; 115 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/334.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/334/head:pull/334

PR: https://git.openjdk.java.net/valhalla/pull/334