During loop unswitching `set_flat_array_check_inputs()` merges all flat array checks into single new `FlatArrayCheck` node. That code doesn't work if a `FlatArrayCheck` node has more than one `ArrayOrKlass` input. (that is it's the result of a previous pass of loop unswitching).
--------- - [x] I confirm that I make this contribution in accordance with the [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). ------------- Commit messages: - whitespaces - whitespaces - more - test & fix Changes: https://git.openjdk.org/valhalla/pull/2430/files Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=2430&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8384364 Stats: 114 lines in 2 files changed: 110 ins; 1 del; 3 mod Patch: https://git.openjdk.org/valhalla/pull/2430.diff Fetch: git fetch https://git.openjdk.org/valhalla.git pull/2430/head:pull/2430 PR: https://git.openjdk.org/valhalla/pull/2430
