### 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
expr = constant;
		} else if (tk.type == TK_INT_CONSTANT) {
			ConstantNode *constant = alloc_node<ConstantNode>();
			ConstantNode::Value v;
			v.sint = tk.constant;
			constant->values.push_back(v);
			constant->datatype = TYPE_INT;
			expr = constant;
		} else if (tk.type == TK_UINT_CONSTANT) {
			ConstantNode *constant = alloc_node<ConstantNode>();
			ConstantNode::Value v;
			v.uint = tk.constant;
			constant->values.push_back(v);
			constant->datatype = TYPE_UINT;
			expr = constant;
		} else if (tk.type == TK_TRUE) {
			
			ConstantNode *constant = alloc_node<ConstantNode>();
			ConstantNode::Value v;
			v.boolean = true;
			constant->values.push_back(v);
			constant->datatype = TYPE_BOOL;
			expr = constant;
		} else if (tk.type == TK_FALSE) {
			
			ConstantNode *constant = alloc_node<ConstantNode>();
			ConstantNode::Value v;
			v.boolean = false;
			constant->values.push_back(v);
			constant->datatype = TYPE_BOOL;