private int getDepth() {
		int depth = 0;
		DefaultCompositeMember p = parent;
		while (p != null) {
			p = p.parent;
			++depth;
		}
		return depth;
	}
Determine if this member is a structure container
@return true if structure container, else false
Ghidra/Features/PDB/src/main/java/ghidra/app/util/bin/format/pdb/DefaultCompositeMember.java