private void sizeChanged(DefaultCompositeMember pdbMember) {
		if (structureMemberRangeMap != null) {
			structureMemberRangeMap.paintRange(pdbMember.memberOffset,
				pdbMember.memberOffset + pdbMember.getLength() - 1, pdbMember.memberOffset);
		}
		if (parent != null) {
			parent.sizeChanged(this);
		}
	}
Insert a structure bitfield without creating additional undefined padding
components (i.e., keep to minimal storage size).
@param struct structure
@param memberOffset byte offset within structure
@param memberName member name
@param bitfieldDt bitfield datatype with minimal storage
@param comment member comment
@return newly inserted structure bitfield component
Ghidra/Features/PDB/src/main/java/ghidra/app/util/bin/format/pdb/DefaultCompositeMember.java