This will ease the future work that is planned on MonoClass. This is a requirement for having stage based initialization.

The initialization code should be moved to a dedicated C file. The MonoClass struct and getter/setter should be defined in a file which is part of a header for "release" builds, and part of a specific C file for "checked" builds, to enable speed on "release" builds and correctness on "checked" builds.

PRs:

• Add getters/setters - MonoClass getters mop-up PR #7806
  • mono/metadata/class.c - [metadata] Use getters for MonoClass fields in class.c #6892
  • mono/metadata/marshal.c - [marshal] Use MonoClass getters in marshal.c #7253
  • mono/metadata/object.c - [runtime] Use MonoClass getters in object.c #7351
  • mono/metadata/sre-save.c - [sre] Use MonoClass getters in sre-save.c #7352
    • Delete the type_token assignment in sre-save.c - [sre-save] Remove type_token assignment in mono_image_fill_export_table #7803
  • the rest of metadata/
    • [runtime] Use MonoClass getters in a few small files #7254
    • [metadata] Use MonoClass getters in the rest of metadata/ #7354
  • all of mini/interp/ - [interp] Use MonoClass getters #7774
  • mini/method-to-ir.c - [mini] Use MonoClass getters in method-to-ir.c #7772
  • mini/aot-compiler.c - [mini] Use MonoClass getters in aot-compiler.c #7773
  • the rest of mini/ - [mini] Use MonoClass getters in a few files #7771
  • the non-amd64 platforms in mini/ - [mini] Use MonoClass getters on non-AMD64 platforms #7799
  • all of dis/ - [mini] Use MonoClass getters in a few files #7771
  • all of profiler/ - [profiler] Use accessor functions for MonoClass fields #7448
  • tools/ - MonoClass getters mop-up PR #7806
• Add readiness level arg to mono_class_init. Update all callers to use mono_class_init (..., MONO_CLASS_READY_MAX) - [RFC] mono_class_init_ready #7856
• Add checked build assertions to getters that are guarded by "inited" bits.