8384108: [lworld] Update runtime/clone tests with value classes

[shivshah-oracle]

Added CloneWithValueFields test to verify clone behavior with value class fields and arrays

Tests cover field cloning, independence, null handling, inheritance, array cloning, and GC survival using migrated value class types (Integer, Long, Double, Short)

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Issue

• JDK-8384108: [lworld] Update runtime/clone tests with value classes (Enhancement - P4)

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[bridgekeeper]

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[openjdk]

❗ This change is not yet ready to be integrated.
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[mlbridge]

Webrevs

• 01: Full - Incremental (5f280f3b)
• 00: Full (a4d46707)

[lmesnik]

Is it possible to combine them with existing tests to reduce code duplication.

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