### Godot version

4.0.2

### System information

Ubuntu 22.04.1 LTS

### Issue description

So far I've found these ones:

![Screenshot from 2023-05-10 17-56-42](https://github.com/godotengine/godot/assets/85438892/b161b14a-cb7d-46fe-8398-816bf354a929)
![Screenshot from 2023-05-10 18-01-02](https://github.com/godotengine/godot/assets/85438892/b0fefcfb-4246-4ebb-ae7b-dd798d7a1d63)

But there are likely more like them. They are invalid, at least in the context I encountered them here (at the beginning of a regular line of script)

### Steps to reproduce

Type `Anchor` in the code editor.

### Minimal reproduction project

N/A
option.insert_text += "(";
						} else {
							option.insert_text += "()";
						}
						break;
					case GDScriptParser::ClassNode::Member::SIGNAL:
						if (p_only_functions || outer || p_static) {
							continue;
						}
						option = ScriptLanguage::CodeCompletionOption(member.signal->identifier->name, ScriptLanguage::CODE_COMPLETION_KIND_SIGNAL, location);
						break;
					case GDScriptParser::ClassNode::Member::GROUP:
						break; 
					case GDScriptParser::ClassNode::Member::UNDEFINED:
						break;
				}
				r_result.insert(option.display, option);
			}
			outer = true;
			clss = clss->outer;
			classes_processed++;
		}
	}
	
	GDScriptCompletionIdentifier base_type;
	base_type.type = p_class->base_type;
	base_type.type.is_meta_type = p_static;
	_find_identifiers_in_base(base_type, p_only_functions, r_result, p_recursion_depth + 1);
}
static void _find_identifiers_in_base(const GDScriptCompletionIdentifier &p_base, bool p_only_functions, HashMap<String, ScriptLanguage::CodeCompletionOption> &r_result, int p_recursion_depth) {