Function check_generic_args_len 

fn check_generic_args_len<'db>(
    args_and_bindings: Option<&GenericArgs>,
    def: GenericDefId,
    def_generics: &Generics<'db>,
    infer_args: bool,
    lifetime_elision: &LifetimeElisionKind<'db>,
    lowering_assoc_type_generics: bool,
    ctx: &mut impl GenericArgsLowerer<'db>,
) -> bool

Returns true if there was an error.