@Override
	public Iterator<FunctionDefinition> getAllFunctionDefinitions() {
		try {
			return new DataTypeIterator<FunctionDefinition>(functionDefAdapter, dt -> true);
		}
		catch (IOException e) {
			dbError(e);
		}
		List<FunctionDefinition> emptyList = List.of();
		return emptyList.iterator();
	}
Notifies the category path changed

@param dt       the datatype whose path changed
@param oldPath  the old category
@param oldCatId the old category's record id
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/data/DataTypeManagerDB.java