presto-main/src/main/java/io/prestosql/sql/gen/InvokeFunctionBytecodeExpression.java/InvokeFunctionBytecodeExpression/getBytecode
class InvokeFunctionBytecodeExpression:    @Override
    public BytecodeNode getBytecode(MethodGenerationContext generationContext)
    {
        return invocation;
    }