Incorrect offset in CU iter_DIE_children

[pesvenss]

When iterating DIEs children in a compile unit the offset is calculated based on:

elif "DW_AT_sibling" in child.attributes:
	sibling = child.attributes["DW_AT_sibling"]
	cur_offset = sibling.value + self.cu_offset

If sibling.form is of type DW_FORM_ref_addr the cur_offset will be incorrect. The elf I am using has both DW_FORM_ref_addr and DW_FORM_ref4

[mdmillerii]

Can you provide either instructions how to generate or a small elf to demonstrate this?