Added mistakenly deleted TODO

Author: volivan239

utbot-framework-api/src/main/kotlin/org/utbot/framework/plugin/api/util/IdUtil.kt

@@ -313,6 +313,7 @@ fun ClassId.defaultValueModel(): UtModel = when (this) {
 val FieldId.safeField: Field?
     get() = declaringClass.jClass.declaredFields.firstOrNull { it.name == name }
 
+// TODO: maybe cache it somehow in the future
 val FieldId.field: Field
     get() = safeField ?: error("Field $name is not found in class ${declaringClass.jClass.name}")