[lworld] RFR: 8378087: [lworld] Complete the migration of java/lang/invoke tests away from TestNG for Valhalla

[Chen Liang]

We just need to run the `generate-vh-tests.sh` to fix the conflicts. The templates have `// -- This file was mechanically generated: Do not edit! -- //` warning but it might have been not obvious enough.

Testing: the 3 tests

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Commit messages:
 - 8378087

Changes: https://git.openjdk.org/valhalla/pull/2126/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=2126&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8378087
  Stats: 237 lines in 4 files changed: 22 ins; 31 del; 184 mod
  Patch: https://git.openjdk.org/valhalla/pull/2126.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/2126/head:pull/2126

PR: https://git.openjdk.org/valhalla/pull/2126