### 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
calltip += ")";
					r_call_hint = calltip;
					return OK;
				}
			}
			int idx = 0;
			String calltip;
			bool low_end = RenderingServer::get_singleton()->is_low_end();
			if (stages && stages->has(block_function)) {
				for (const KeyValue<StringName, StageFunctionInfo> &E : (*stages)[block_function].stage_functions) {
					if (completion_function == E.key) {
						calltip += get_datatype_name(E.value.return_type);
						calltip += " ";
						calltip += E.key;
						calltip += "(";
						for (int i = 0; i < E.value.arguments.size(); i++) {
							if (i > 0) {
								calltip += ", ";
							} else {
								calltip += " ";
							}
							if (i == completion_argument) {
								calltip += char32_t(0xFFFF);
							}
							calltip += get_datatype_name(E.value.arguments[i].type);
							calltip += " ";
							calltip += E.value.arguments[i].name;
							if (i == completion_argument) {
								calltip += char32_t(0xFFFF);
							}