RFR: 8341834: C2 compilation fails with "bad AD file" due to Replicate

[Roland Westrelin]

Superword creates a `Replicate` node at a `ConvL2I` node and uses the
type of the result of the `ConvL2I` to pick the type of the
`Replicate` instead of the type of the input to the `ConvL2I`.

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Commit messages:
 - test
 - fix

Changes: https://git.openjdk.org/jdk/pull/21660/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21660&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8341834
  Stats: 49 lines in 2 files changed: 48 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/21660.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21660/head:pull/21660

PR: https://git.openjdk.org/jdk/pull/21660