### 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 _make_token(TK_ERROR, "Invalid (unsigned integer) numeric constant");
							} else {
								return _make_token(TK_ERROR, "Invalid (integer) numeric constant");
							}
						}
					}
					char_idx += str.length();
					Token tk;
					if (period_found || exponent_found || float_suffix_found) {
						tk.type = TK_FLOAT_CONSTANT;
					} else if (uint_suffix_found) {
						tk.type = TK_UINT_CONSTANT;
					} else {
						tk.type = TK_INT_CONSTANT;
					}
					if (hexa_found) {
						tk.constant = (double)str.hex_to_int();
					} else {
						tk.constant = str.to_float();
					}
					tk.line = tk_line;
					return tk;
				}
				if (GETCHAR(0) == '.') {
					
					char_idx++;
					return _make_token(TK_PERIOD);
				}
				if (is_ascii_identifier_char(GETCHAR(0))) {