RFR: 8353298: AOT cache creation asserts with _array_klasses in an unregistered InstanceKlass [v2]

[Ioi Lam]

> The assert in `Klass::remove_java_mirror()` is too narrow. When creating the AOT cache, it's possible to see two types of Klasses that do not have a Java mirror:
> 
> - Unregistered classes (a cached class to be loaded by a custom class loader in the production run)
> - An array type of an unregistered class
> 
> I have relaxed the assert to accept both conditions

Ioi Lam has updated the pull request incrementally with one additional commit since the last revision:

  Added comments about the purpose of AOTCacheSupportForCustomLoaders.java

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Changes:
  - all: https://git.openjdk.org/jdk/pull/24711/files
  - new: https://git.openjdk.org/jdk/pull/24711/files/79c81bc0..dc58250d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24711&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24711&range=00-01

  Stats: 3 lines in 1 file changed: 3 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/24711.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24711/head:pull/24711

PR: https://git.openjdk.org/jdk/pull/24711