Fix accessibility check for experimental declarations from default scope

#KT-40919 Fixed

compiler/testData/cli/jvm/useDeclarationThatWasExperimentalWithoutExplicitImport.kt

@@ -0,0 +1,7 @@
+@ExperimentalStdlibApi
+fun test(s: ArrayDeque<Int>): ArrayDeque<Int>? {
+    ArrayDeque<Int>(42)
+
+    val x: ArrayDeque<Int>? = null
+    return x ?: s
+}