### 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
tk = _get_token();
							if (first) {
								first = false;
								if (tk.type != TK_IDENTIFIER && tk.type != TK_BRACKET_OPEN) {
									_set_error(RTR("Expected an identifier or '['."));
									return ERR_PARSE_ERROR;
								}
								if (tk.type == TK_BRACKET_OPEN) {
									Error error = _parse_array_size(nullptr, constants, true, nullptr, &array_size, nullptr);
									if (error != OK) {
										return error;
									}
									fixed_array_size = true;
									tk = _get_token();
								}
							}
							if (tk.type != TK_IDENTIFIER) {
								_set_error(RTR("Expected an identifier."));
								return ERR_PARSE_ERROR;
							}
							MemberNode *member = alloc_node<MemberNode>();
							member->precision = precision;
							member->datatype = type;
							member->struct_name = struct_name;
							member->name = tk.text;
							member->array_size = array_size;
							if (member_names.has(member->name)) {
								_set_redefinition_error(String(member->name));
								return ERR_PARSE_ERROR;
							}