Value Types: defaultValue Enhancement in AOT Compilation

[a7ehuo]

This issue is to track the work items that are required to make defaultValue enhancement to work in AOT compilation.

Background

We are in the process of implementing a defaultValue enhancement that loads preallocated default value instance if the value type class is initialized. There is no existing relocation record to materialize the default value instance slot address. A new relocation required is required.

Breakdown of The Work

• [ ] 1. non-SVM AOT on X86
• [ ] 2. SVM AOT
• [ ] 3. Other platforms: P, Z, Aarch64

[a7ehuo]

@hzongaro fyi

[a7ehuo]

• [x] 1. non-SVM AOT on X86

Addressed in https://github.com/eclipse/omr/pull/6641, https://github.com/eclipse-openj9/openj9/pull/15666