kotlin-fork/compiler/testData/diagnostics/tests/regressions/SpecififcityByReceiver.kt

fun Any.equals(<!UNUSED_PARAMETER!>other<!> : Any?) : Boolean = true

fun main(args: Array<String>) {

    val command : Any = 1

    command<!UNNECESSARY_SAFE_CALL!>?.<!>equals(null)
    command.equals(null)
}