private HashSet<FunctionSymbol> getFunctionsToQuery(Program program) {
		HashSet<FunctionSymbol> functions = new HashSet<>();
		FunctionIterator fIter = program.getFunctionManager().getFunctionsNoStubs(true);
		for (Function func : fIter) {
			functions.add((FunctionSymbol) func.getSymbol());
		}
		return functions;
	}
Returns a set of ALL functions (no stubs) in the given program.

@param program the program to get the functions from
@return list of function symbols
Ghidra/Features/BSim/ghidra_scripts/QueryWithFiltersScript.java