kotlin-fork/compiler/testData/diagnostics/testsWithStdLib/contracts/smartcasts/valueOfContractedFunctionIngored.kt

// !LANGUAGE: +AllowContractsForCustomFunctions +UseReturnsEffect
// !USE_EXPERIMENTAL: kotlin.contracts.ExperimentalContracts
// !DIAGNOSTICS: -INVISIBLE_REFERENCE -INVISIBLE_MEMBER

import kotlin.contracts.*

fun f3(value: String?) {
    if (<!USELESS_IS_CHECK!>!value.isNullOrEmpty() is Boolean<!>) {
        <!DEBUG_INFO_SMARTCAST!>value<!>.length
    }
}