private DWARFCompilationUnit getCompilationUnitForDIE(int dieIndex) {
		Entry<Integer, DWARFCompilationUnit> entry = compUnitDieIndex.ceilingEntry(dieIndex);
		return entry != null ? entry.getValue() : null;
	}
Returns list of indexes of the children of the specified DIE

@param dieIndex index of a DIE record
@return list of DIE indexes that are children of the specified DIE
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/dwarf/DWARFProgram.java