kotlin/compiler/testData/codegen/box/funInterface/basicFunInterfaceConversion.kt

// !LANGUAGE: +NewInference +FunctionInterfaceConversion +SamConversionPerArgument +SamConversionForKotlinFunctions

fun interface Foo {
    fun invoke(): String
}

fun foo(f: Foo) = f.invoke()

fun box(): String {
    return foo { "OK" }
}