kotlin-fork/idea/testData/inspectionsLocal/simplifyNegatedBinaryExpression/in.kt

// FIX: Replace negated 'in' operation with '!in'
class A(val e: Int) {
    operator fun contains(i: Int): Boolean = e == i
}

fun test(n: Int) {
    val a = A(1)
    <caret>!(0 in a)
}