### 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
error = true;
									}
									float_suffix_found = true;
									end_suffix_found = true;
									lut_case = CASE_NONE;
								} else if (symbol == 'u') {
									uint_suffix_found = true;
									end_suffix_found = true;
									lut_case = CASE_NONE;
								} else if (symbol == '-' || symbol == '+') {
									if (exponent_found) {
										lut_case = CASE_SIGN_AFTER_EXPONENT;
									} else {
										break;
									}
								}
							} else if (!hexa_found || !is_hex_digit(symbol)) {
								if (is_ascii_identifier_char(symbol)) {
									error = true;
								} else {
									break;
								}
							}
						}
						if (error) {
							if (hexa_found) {
								return _make_token(TK_ERROR, "Invalid (hexadecimal) numeric constant");
							}
							if (period_found || exponent_found || float_suffix_found) {
								return _make_token(TK_ERROR, "Invalid (float) numeric constant");