private void recordTempDataType(DWARFDataType ddt) {
		if (ddt.dataType instanceof DatabaseObject) {
			// don't store info about types that are already in the database
			return;
		}
		dataTypeInstanceToDDTMap.put(ddt.dataType, ddt);
		for (Long offset : ddt.offsets) {
			dieOffsetToDataTypeMap.put(offset, ddt);
		}
	}
Returns true if the previously imported data type should be reused.
<p>
Don't re-use empty structs (isNotYetDefined) to ensure that newer
definitions of the same struct are given a chance to be resolved() 
into the DTM. 

@param alreadyImportedDT dataType to check
@return boolean true if its okay to reuse the data type
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/dwarf/DWARFDataTypeImporter.java