@Override
	boolean addMember(DefaultCompositeMember member) {

		DataType dt = member.getDataType();
		if (dt == null || dt.getLength() <= 0) {
			return false;
		}

		// trigger structure/union transformation
		DefaultCompositeMember bf0 = list.remove(0);

		return bf0.addMember(member);
	}
<code>BitFieldGroupCompositeMember</code> provides the ability to collect related
{@link DefaultCompositeMember} members within a group during the composite reconstruction
process.
Ghidra/Features/PDB/src/main/java/ghidra/app/util/bin/format/pdb/BitFieldGroupCompositeMember.java