public static boolean isPointerDataType(DIEAggregate diea) {
		while (diea.getTag() == DW_TAG_typedef) {
			diea = diea.getTypeRef();
		}
		return diea.getTag() == DW_TAG_pointer_type;
	}
Append a string to a description of a field in a structure.

@param dtc the {@link DataTypeComponent field} in a struct
@param description string to append, if null or empty nothing happens.
@param sep characters to place after previous description to separate it from the
new portion.
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/dwarf/DWARFUtil.java