### 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 (tk.type == TK_COMMA) {
						
					} else if (tk.type == TK_SEMICOLON) {
						break; 
					} else {
						_set_error(vformat(RTR("Unexpected token: '%s'."), get_token_text(tk)));
						return ERR_PARSE_ERROR;
					}
				}
#ifdef DEBUG_ENABLED
				keyword_completion_context = CF_GLOBAL_SPACE;
#endif 
			} break;
			case TK_STRUCT: {
				ShaderNode::Struct st;
				DataType type;
#ifdef DEBUG_ENABLED
				keyword_completion_context = CF_UNSPECIFIED;
#endif 
				tk = _get_token();
				if (tk.type == TK_IDENTIFIER) {
					st.name = tk.text;
					if (shader->constants.has(st.name) || shader->structs.has(st.name)) {
						_set_redefinition_error(String(st.name));
						return ERR_PARSE_ERROR;
					}
					tk = _get_token();
					if (tk.type != TK_CURLY_BRACKET_OPEN) {
						_set_expected_error("{");