Move UArraysKt into kotlin.collections.unsigned package

Provide UArraysKt class in kotlin.collections for binary compatibility
instead of removed multipart facade class. It contains only non-inline
functions of the latter.

libraries/stdlib/common/src/generated/_UArrays.kt

@@ -5,6 +5,7 @@
 
 @file:kotlin.jvm.JvmMultifileClass
 @file:kotlin.jvm.JvmName("UArraysKt")
+@file:kotlin.jvm.JvmPackageName("kotlin.collections.unsigned")
 
 package kotlin.collections
 

libraries/stdlib/jvm/java9/module-info.java

@@ -2,6 +2,7 @@ module kotlin.stdlib {
     exports kotlin;
     exports kotlin.annotation;
     exports kotlin.collections;
+    exports kotlin.collections.unsigned;
     exports kotlin.comparisons;
     exports kotlin.concurrent;
     exports kotlin.contracts;

libraries/stdlib/jvm/src/generated/_UArraysJvm.kt

@@ -5,6 +5,7 @@
 
 @file:kotlin.jvm.JvmMultifileClass
 @file:kotlin.jvm.JvmName("UArraysKt")
+@file:kotlin.jvm.JvmPackageName("kotlin.collections.unsigned")
 
 package kotlin.collections
 

libraries/stdlib/jvm/src/kotlin/collections/UArraysKt.kt

@@ -0,0 +1,141 @@
+/*
+ * Copyright 2010-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the license/LICENSE.txt file.
+ */
+
+package kotlin.collections
+
+import kotlin.random.Random
+
+@Deprecated("Provided for binary compatibility", level = DeprecationLevel.HIDDEN)
+public object UArraysKt {
+
+    @JvmStatic
+    @ExperimentalUnsignedTypes
+    public fun UIntArray.random(random: Random): UInt {
+        if (isEmpty())
+            throw NoSuchElementException("Array is empty.")
+        return get(random.nextInt(size))
+    }
+
+    @JvmStatic
+    @ExperimentalUnsignedTypes
+    public fun ULongArray.random(random: Random): ULong {
+        if (isEmpty())
+            throw NoSuchElementException("Array is empty.")
+        return get(random.nextInt(size))
+    }
+
+    @JvmStatic
+    @ExperimentalUnsignedTypes
+    public fun UByteArray.random(random: Random): UByte {
+        if (isEmpty())
+            throw NoSuchElementException("Array is empty.")
+        return get(random.nextInt(size))
+    }
+
+    @JvmStatic
+    @ExperimentalUnsignedTypes
+    public fun UShortArray.random(random: Random): UShort {
+        if (isEmpty())
+            throw NoSuchElementException("Array is empty.")
+        return get(random.nextInt(size))
+    }
+
+    @JvmStatic
+    @ExperimentalUnsignedTypes
+    public infix fun UIntArray.contentEquals(other: UIntArray): Boolean {
+        return storage.contentEquals(other.storage)
+    }
+
+    @JvmStatic
+    @ExperimentalUnsignedTypes
+    public infix fun ULongArray.contentEquals(other: ULongArray): Boolean {
+        return storage.contentEquals(other.storage)
+    }
+
+    @JvmStatic
+    @ExperimentalUnsignedTypes
+    public infix fun UByteArray.contentEquals(other: UByteArray): Boolean {
+        return storage.contentEquals(other.storage)
+    }
+
+    @JvmStatic
+    @ExperimentalUnsignedTypes
+    public infix fun UShortArray.contentEquals(other: UShortArray): Boolean {
+        return storage.contentEquals(other.storage)
+    }
+
+    @JvmStatic
+    @ExperimentalUnsignedTypes
+    public fun UIntArray.contentHashCode(): Int {
+        return storage.contentHashCode()
+    }
+
+    @JvmStatic
+    @ExperimentalUnsignedTypes
+    public fun ULongArray.contentHashCode(): Int {
+        return storage.contentHashCode()
+    }
+
+    @JvmStatic
+    @ExperimentalUnsignedTypes
+    public fun UByteArray.contentHashCode(): Int {
+        return storage.contentHashCode()
+    }
+
+    @JvmStatic
+    @ExperimentalUnsignedTypes
+    public fun UShortArray.contentHashCode(): Int {
+        return storage.contentHashCode()
+    }
+
+    @JvmStatic
+    @ExperimentalUnsignedTypes
+    public fun UIntArray.contentToString(): String {
+        return joinToString(", ", "[", "]")
+    }
+
+    @JvmStatic
+    @ExperimentalUnsignedTypes
+    public fun ULongArray.contentToString(): String {
+        return joinToString(", ", "[", "]")
+    }
+
+    @JvmStatic
+    @ExperimentalUnsignedTypes
+    public fun UByteArray.contentToString(): String {
+        return joinToString(", ", "[", "]")
+    }
+
+    @JvmStatic
+    @ExperimentalUnsignedTypes
+    public fun UShortArray.contentToString(): String {
+        return joinToString(", ", "[", "]")
+    }
+
+    @JvmStatic
+    @ExperimentalUnsignedTypes
+    public fun UIntArray.toTypedArray(): Array<UInt> {
+        return Array(size) { index -> this[index] }
+    }
+
+    @JvmStatic
+    @ExperimentalUnsignedTypes
+    public fun ULongArray.toTypedArray(): Array<ULong> {
+        return Array(size) { index -> this[index] }
+    }
+
+    @JvmStatic
+    @ExperimentalUnsignedTypes
+    public fun UByteArray.toTypedArray(): Array<UByte> {
+        return Array(size) { index -> this[index] }
+    }
+
+    @JvmStatic
+    @ExperimentalUnsignedTypes
+    public fun UShortArray.toTypedArray(): Array<UShort> {
+        return Array(size) { index -> this[index] }
+    }
+
+}