private DWARFName lookupDNIByOffset(long offset) {
		DWARFName tmp = dniCache.get(offset);
		return tmp;
	}
Returns a {@link DWARFName} for a {@link DIEAggregate}.

@param diea {@link DIEAggregate}
@return {@link DWARFName}, never null
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/dwarf/DWARFProgram.java