### 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
int max = builtin_func_const_args[constarg_idx].max;
								bool error = false;
								if (p_func->arguments[arg]->type == Node::NODE_TYPE_VARIABLE) {
									const VariableNode *vn = static_cast<VariableNode *>(p_func->arguments[arg]);
									bool is_const = false;
									ConstantNode::Value value;
									value.sint = -1;
									_find_identifier(p_block, false, p_function_info, vn->name, nullptr, nullptr, &is_const, nullptr, nullptr, &value);
									if (!is_const || value.sint < min || value.sint > max) {
										error = true;
									}
								} else {
									if (p_func->arguments[arg]->type == Node::NODE_TYPE_CONSTANT) {
										const ConstantNode *cn = static_cast<ConstantNode *>(p_func->arguments[arg]);
										if (cn->get_datatype() == TYPE_INT && cn->values.size() == 1) {
											int value = cn->values[0].sint;
											if (value < min || value > max) {
												error = true;
											}
										} else {
											error = true;
										}
									} else {
										error = true;
									}
								}
								if (error) {
									_set_error(vformat(RTR("Expected integer constant within [%d..%d] range."), min, max));
									return false;
								}