### 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 true;
	} else if (p_constant->datatype == TYPE_UINT && p_to_type == TYPE_FLOAT) {
		if (p_value) {
			p_value->real = p_constant->values[0].uint;
		}
		return true;
	} else if (p_constant->datatype == TYPE_INT && p_to_type == TYPE_UINT) {
		if (p_constant->values[0].sint < 0) {
			return false;
		}
		if (p_value) {
			p_value->uint = p_constant->values[0].sint;
		}
		return true;
	} else if (p_constant->datatype == TYPE_UINT && p_to_type == TYPE_INT) {
		if (p_constant->values[0].uint > 0x7FFFFFFF) {
			return false;
		}
		if (p_value) {
			p_value->sint = p_constant->values[0].uint;
		}
		return true;
	} else {
		return false;
	}
}
bool ShaderLanguage::is_scalar_type(DataType p_type) {
	return p_type == TYPE_BOOL || p_type == TYPE_INT || p_type == TYPE_UINT || p_type == TYPE_FLOAT;
}
bool ShaderLanguage::is_float_type(DataType p_type) {