@Override
	public boolean isUndefined() {
		return record == null && cachedDataType == null;
	}
Perform special-case component update that does not result in size or alignment changes. 
@param name new component name
@param dt new resolved datatype
@param comment new comment
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/data/DataTypeComponentDB.java