RFR: 8348658: [AArch64] The node limit in compiler/codegen/TestMatcherClone.java is too strict

[Daniel Lundén]

On some aarch64 machines, the node limit in the test `compiler/codegen/TestMatcherClone.java` is too strict.

### Changeset

On the aarch64 machine I used when developing the fix for [JDK-8331295](https://bugs.openjdk.org/browse/JDK-8331295), the fix caused the node count in the test to decrease from 522 to 174. As a result, I set the IR framework node count limit to <200 to capture this. @shipilev now reports that on another aarch64 machine, the fix instead results in a decrease from 696 to 350. Since the fix for [JDK-8331295](https://bugs.openjdk.org/browse/JDK-8331295) still applies (the node count indeed decreases as expected), we should adjust the limit to somewhere in between 350 and 522 to capture both cases. 400 seems like a reasonable value and is what I propose in this PR.

### Testing

- [GitHub Actions](https://github.com/dlunde/jdk/actions/runs/13014279125)
- `tier1` and HotSpot parts of `tier2` and `tier3` on Windows x64, Linux x64, Linux aarch64, macOS x64, and macOS aarch64.
- Extra testing of `TestMatcherClone.java` with various flag combinations.

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Commit messages:
 - Increase TestMatcherClone limit

Changes: https://git.openjdk.org/jdk/pull/23349/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23349&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8348658
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/23349.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23349/head:pull/23349

PR: https://git.openjdk.org/jdk/pull/23349