Specialize contentDeepEquals/HashCode/ToString for arrays of unsigned types

#KT-26388

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

@@ -295,9 +295,13 @@ public fun CharArray.binarySearch(element: Char, fromIndex: Int = 0, toIndex: In
  * If any of arrays contains itself on any nesting level the behavior is undefined.
  */
 @SinceKotlin("1.1")
+@JvmName("contentDeepEqualsInline")
 @kotlin.internal.InlineOnly
 public actual inline infix fun <T> Array<out T>.contentDeepEquals(other: Array<out T>): Boolean {
-    return java.util.Arrays.deepEquals(this, other)
+    if (kotlin.internal.apiVersionIsAtLeast(1, 3, 0))
+        return contentDeepEqualsImpl(other)
+    else
+        return java.util.Arrays.deepEquals(this, other)
 }
 
 /**
@@ -307,9 +311,13 @@ public actual inline infix fun <T> Array<out T>.contentDeepEquals(other: Array<o
  * If any of arrays contains itself on any nesting level the behavior is undefined.
  */
 @SinceKotlin("1.1")
+@JvmName("contentDeepHashCodeInline")
 @kotlin.internal.InlineOnly
 public actual inline fun <T> Array<out T>.contentDeepHashCode(): Int {
-    return java.util.Arrays.deepHashCode(this)
+    if (kotlin.internal.apiVersionIsAtLeast(1, 3, 0))
+        return contentDeepHashCodeImpl()
+    else
+        return java.util.Arrays.deepHashCode(this)
 }
 
 /**
@@ -322,9 +330,13 @@ public actual inline fun <T> Array<out T>.contentDeepHashCode(): Int {
  * @sample samples.collections.Arrays.ContentOperations.contentDeepToString
  */
 @SinceKotlin("1.1")
+@JvmName("contentDeepToStringInline")
 @kotlin.internal.InlineOnly
 public actual inline fun <T> Array<out T>.contentDeepToString(): String {
-    return java.util.Arrays.deepToString(this)
+    if (kotlin.internal.apiVersionIsAtLeast(1, 3, 0))
+        return contentDeepToStringImpl()
+    else
+        return java.util.Arrays.deepToString(this)
 }
 
 /**

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

@@ -47,4 +47,14 @@ internal actual fun <T> arrayOfNulls(reference: Array<T>, size: Int): Array<T> {
 @SinceKotlin("1.3")
 internal fun copyOfRangeToIndexCheck(toIndex: Int, size: Int) {
     if (toIndex > size) throw IndexOutOfBoundsException("toIndex ($toIndex) is greater than size ($size).")
-}
+}
+
+
+@SinceKotlin("1.3")
+@PublishedApi
+@kotlin.jvm.JvmName("contentDeepHashCode")
+internal fun <T> Array<out T>.contentDeepHashCodeImpl(): Int =
+// returns valid result for unsigned arrays by accident:
+// hash code of an inline class, which an unsigned array is,
+// is calculated structurally as in a data class
+    java.util.Arrays.deepHashCode(this)