private static DataType getDataType(DataTypeComponent sourceDtc) {
			DataType dt = sourceDtc.getDataType();
			if (dt instanceof BitFieldDataType bfDt) {
				dt = bfDt.getBaseDataType();
			}
			return dt;
		}
Construct info needed to fix up data types after base types
or components were resolved.
@param id id of data type needing to be fixed up
@param compID datatype ID of either param/component or bitfield base type
@param destOrdinal component ordinal within destination composite
@param sourceDtc associated composite datatype component
@param resolvedDataTypes hashtable used for resolving the data type
Ghidra/Features/Base/src/main/java/ghidra/app/merge/datatypes/DataTypeMergeManager.java