isKeyValueMismatch function
Проверка mismatch: ключ 'x' и значение x
Implementation
bool isKeyValueMismatch(MapLiteralEntry entry) {
if (entry.value is! SimpleIdentifier) return false;
if (entry.key is! SimpleStringLiteral) return false;
final String key = (entry.key as SimpleStringLiteral).stringValue ?? '';
final String value = (entry.value as SimpleIdentifier).name;
return key != value;
}