private static Map<Integer, DWARFLineContentType> buildLookup() {
		Map<Integer, DWARFLineContentType> result = new HashMap<>();
		for (DWARFLineContentType e : values()) {
			result.put(e.id, e);
		}
		return result;
	}
Represents an identifier of a value in a DWARFLine/DWARFFile object.
<p>
Similar to the {@link DWARFAttribute} enum, both are identifiers of an attribute value 
that is serialized by a DWARFForm.
<p>
Users of this enum should be tolerant of unknown values.
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/dwarf/line/DWARFLineContentType.java