// WITH_RUNTIME
// INTENTION_TEXT: "Replace with 'flatMapTo(){}'"
// INTENTION_TEXT_2: "Replace with 'asSequence().flatMapTo(){}'"
import java.util.ArrayList

fun foo(list: List<String>): List<String> {
    val <caret>target = list
        .asSequence()
        .flatMapTo(ArrayList<String>(100)) { it.lines().asSequence() }
    return target
}