public static boolean isUndefinedArray(DataType dataType) {
		if (!(dataType instanceof Array)) {
			return false;
		}
		DataType baseType = ((Array) dataType).getDataType();
		return (baseType instanceof Undefined) || (baseType instanceof DefaultDataType);
	}
Determine if the specified dataType is an undefined array
used to represent large undefined data.
@param dataType
@return true if the specified dataType is an undefined array
used to represent large undefined data, otherwise false.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/data/Undefined.java