### Godot version

v4.0.beta13.official [caacade56]

### System information

Linux Ubuntu 20.04 with Unity desktop

### Issue description

When calling an undefined function in the shader editor with argument(s), such as `undefined_function(1)`, the error reads:

> Too many arguments for "undefined_function()" call. Expected at most 0 but received 1.

instead of the expected:

> No matching function found for: 'undefined_function'.

This is possibly a regression introduced in https://github.com/godotengine/godot/issues/18225, since the latter was focused on the arguments part.

To avoid such regression in the future, consider adding a unit test with this case (and, in fact, unit tests for the other signature errors too if there are not already).

### Steps to reproduce

1. Create a shader resource and open the shader editor
2. Enter `undefined_function(1);` in the fragment() definition

### Minimal reproduction project

N/A
return check_warnings;
}
void ShaderLanguage::set_warning_flags(uint32_t p_flags) {
	warning_flags = p_flags;
}
uint32_t ShaderLanguage::get_warning_flags() const {
	return warning_flags;
}
#endif 
Error ShaderLanguage::compile(const String &p_code, const ShaderCompileInfo &p_info) {
	clear();
	is_shader_inc = p_info.is_include;
	code = p_code;
	global_shader_uniform_get_type_func = p_info.global_shader_uniform_type_func;
	varying_function_names = p_info.varying_function_names;
	nodes = nullptr;
	shader = alloc_node<ShaderNode>();
	Error err = _parse_shader(p_info.functions, p_info.render_modes, p_info.shader_types);
#ifdef DEBUG_ENABLED
	if (check_warnings) {
		_check_warning_accums();
	}
#endif 
	if (err != OK) {
		return err;
	}
	return OK;
}
Error ShaderLanguage::complete(const String &p_code, const ShaderCompileInfo &p_info, List<ScriptLanguage::CodeCompletionOption> *r_options, String &r_call_hint) {