compiler/testData/cli/jvm/useDeclarationThatWasExperimentalWithoutMarker.kt:1:13: error: this declaration is experimental and its usage must be marked with '@kotlin.ExperimentalStdlibApi' or '@OptIn(kotlin.ExperimentalStdlibApi::class)' fun test(s: ArrayDeque): ArrayDeque? { ^ compiler/testData/cli/jvm/useDeclarationThatWasExperimentalWithoutMarker.kt:1:31: error: this declaration is experimental and its usage must be marked with '@kotlin.ExperimentalStdlibApi' or '@OptIn(kotlin.ExperimentalStdlibApi::class)' fun test(s: ArrayDeque): ArrayDeque? { ^ compiler/testData/cli/jvm/useDeclarationThatWasExperimentalWithoutMarker.kt:2:5: error: unresolved reference: ArrayDeque ArrayDeque(42) ^ compiler/testData/cli/jvm/useDeclarationThatWasExperimentalWithoutMarker.kt:4:12: error: this declaration is experimental and its usage must be marked with '@kotlin.ExperimentalStdlibApi' or '@OptIn(kotlin.ExperimentalStdlibApi::class)' val x: ArrayDeque? = null ^ COMPILATION_ERROR