[jdk21u-dev] RFR: 8328702: C2: Crash during parsing because sub type check is not folded

[Aleksey Shipilev]

Fixes another C2 bug, regression in JDK 21.

Additional testing:
 - [x] New regression test fails without the fix, passes with it
 - [x] Linux x86_64 server fastdebug, `all` tests pass
 - [ ] Linux x86_64 server fastdebug, Fuzzer tests
 - [ ] Linux x86_64 server fastdebug, Maven CTW tests

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Commit messages:
 - Backport e5e21a8a6e64466f9cda2064aa2723a15d4ae86a

Changes: https://git.openjdk.org/jdk21u-dev/pull/450/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=450&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8328702
  Stats: 143 lines in 3 files changed: 139 ins; 2 del; 2 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/450.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/450/head:pull/450

PR: https://git.openjdk.org/jdk21u-dev/pull/450