compiler/testData/diagnostics/testsWithStdLib/smartcasts/letAlwaysChangesToNotNull.kt

// KT-9051: Allow smart cast for captured variables if they are not modified

fun foo(y: String) {
    var x: String? = <!VARIABLE_WITH_REDUNDANT_INITIALIZER!>null<!>
    y.let { x = it }
    x<!UNSAFE_CALL!>.<!>length // Smart cast is not possible
}