kotlin-fork/compiler/testData/diagnostics/tests/smartCasts/loops/whileNullWithBreak.kt

// FIR_IDENTICAL
fun bar(): Boolean { return true }

fun foo(s: String?): Int {
    while (s==null) {
        if (bar()) break
    }
    // Call is unsafe due to break
    return s<!UNSAFE_CALL!>.<!>length
}