### 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
for (const PropertyInfo &E : props) {
						String s = E.name;
						if (!s.begins_with("autoload/")) {
							continue;
						}
						String name = s.get_slice("/", 1);
						ScriptLanguage::CodeCompletionOption option("/root/" + name, ScriptLanguage::CODE_COMPLETION_KIND_NODE_PATH);
						option.insert_text = option.display.quote(quote_style);
						r_result.insert(option.display, option);
					}
				}
				if (p_argidx == 0 && method_args > 0 && ClassDB::is_parent_class(class_name, SNAME("InputEvent")) && p_method.operator String().contains("action")) {
					
					List<PropertyInfo> props;
					ProjectSettings::get_singleton()->get_property_list(&props);
					for (const PropertyInfo &E : props) {
						String s = E.name;
						if (!s.begins_with("input/")) {
							continue;
						}
						String name = s.get_slice("/", 1);
						ScriptLanguage::CodeCompletionOption option(name, ScriptLanguage::CODE_COMPLETION_KIND_CONSTANT);
						option.insert_text = option.display.quote(quote_style);
						r_result.insert(option.display, option);
					}
				}
				base_type.kind = GDScriptParser::DataType::UNRESOLVED;
			} break;
			case GDScriptParser::DataType::BUILTIN: {
				if (base.get_type() == Variant::NIL) {