[lworld] RFR: 8294054: [lworld] asPrimaryType/asValueType intrinsics broken after JDK-8287692

[Tobias Hartmann]

[JDK-8287692](https://bugs.openjdk.org/browse/JDK-8287692) made the `asPrimaryType`/`asValueType` methods in `java.lang.Class` package private and added public versions to `jdk.internal.value.PrimitiveClass`. This change adds the required VM code to intrinsify the new methods.

Thanks,
Tobias

-------------

Commit messages:
 - 8294054: [lworld] asPrimaryType/asValueType intrinsics broken after JDK-8287692

Changes: https://git.openjdk.org/valhalla/pull/762/files
 Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=762&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8294054
  Stats: 21 lines in 6 files changed: 15 ins; 0 del; 6 mod
  Patch: https://git.openjdk.org/valhalla/pull/762.diff
  Fetch: git fetch https://git.openjdk.org/valhalla pull/762/head:pull/762

PR: https://git.openjdk.org/valhalla/pull/762