Fields
- lock: *void
- is_orphaned: bool
- size_class: [126] Heap_Size_Class
- span_free_deferred: *void
- full_span_count: s64
- span_reserve: *Span
- span_reserve_master: *Span
- spans_reserved: u32
- child_count: s32
- next_heap: *Heap
- next_orphan: *Heap
- id: s32
- finalize: s32
- master_heap: *Heap
- full_span: [126] *Span
- large_huge_span: *Span