### Godot version

Beta 17, master

### System information

Windows 11

### Issue description

Godot gets a hard crash while attempting to code-complete for member `const` of a class.

### Steps to reproduce

```GDScript
enum E { V1 }

const e := E
```

And then type a `.` after the last `E`, which triggers code hints/auto-completion for subscripts based on `E` and causes a hard crash.

Does not happen for `var e := E.V1`.

### Minimal reproduction project

See above.
}
		}
#endif 
	}
	if (p_function->get_datatype().is_resolving()) {
		p_function->set_datatype(prev_datatype);
	}
	parser->current_function = previous_function;
}
void GDScriptAnalyzer::resolve_function_body(GDScriptParser::FunctionNode *p_function, bool p_is_lambda) {
	if (p_function->resolved_body) {
		return;
	}
	p_function->resolved_body = true;
	GDScriptParser::FunctionNode *previous_function = parser->current_function;
	parser->current_function = p_function;
	resolve_suite(p_function->body);
	GDScriptParser::DataType return_type = p_function->body->get_datatype();
	if (!p_function->get_datatype().is_hard_type() && return_type.is_set()) {
		
		return_type.type_source = GDScriptParser::DataType::INFERRED;
		p_function->set_datatype(p_function->body->get_datatype());
	} else if (p_function->get_datatype().is_hard_type() && (p_function->get_datatype().kind != GDScriptParser::DataType::BUILTIN || p_function->get_datatype().builtin_type != Variant::NIL)) {
		if (!p_function->body->has_return && (p_is_lambda || p_function->identifier->name != GDScriptLanguage::get_singleton()->strings._init)) {
			push_error(R"(Not all code paths return a value.)", p_function);
		}
	}
	parser->current_function = previous_function;
}
void GDScriptAnalyzer::decide_suite_type(GDScriptParser::Node *p_suite, GDScriptParser::Node *p_statement) {