[lworld] RFR: 8294159: automatically generated tests under test/jdk/java/lang/invoke/VarHandles/ have been modified by mistake

[Vicente Romero]

Most tests under `test/jdk/java/lang/invoke/VarHandles/` should be generated from a template, that is processed by the script `generate-vh-tests.sh` located in the same folder. Several of these tests have been modified directly instead of modifying the template. This PR is correcting this issue,

TIA

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Commit messages:
 - 8294159: automatically generated tests under test/jdk/java/lang/invoke/VarHandles/ have been modified by mistake

Changes: https://git.openjdk.org/valhalla/pull/765/files
 Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=765&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8294159
  Stats: 197 lines in 7 files changed: 133 ins; 0 del; 64 mod
  Patch: https://git.openjdk.org/valhalla/pull/765.diff
  Fetch: git fetch https://git.openjdk.org/valhalla pull/765/head:pull/765

PR: https://git.openjdk.org/valhalla/pull/765