`TArrayStackItem`
pt		CopyTo
		GetItemCount
		Find
		GetByIndex
		CreateBuffer
		CreateInnerBuffer
		GetInnerBuffer
		NilCurrentScope
		IsCurrentScopeNil
		GetScopeItemNames

`TStackItem`
pt		CopyTo
		Create
		Clone
		GetItemCount
		Find
		GetByIndex
		CreateBuffer
		CreateInnerBuffer
		GetInnerBuffer
		NilCurrentScope
		IsCurrentScopeNil
		GetScopeItemNames