Introduce kotlin.Cloneable

- Cloneable is a trait with a single protected member 'clone', which is mapped
  to java.lang.Cloneable on JVM
- 'clone' is non-abstract to be able to call 'super.clone()' in the
  implementations. Also if you need your class to be Cloneable, most of the
  time inheriting from Cloneable and calling 'super.clone()' will work
- hack 'super.clone()' in JVM intrinsics and TImpl delegation generation
- make arrays Cloneable, handle 'clone()' calls in the intrinsic

 #KT-4890 Fixed

compiler/testData/builtin-classes.txt

@@ -13,12 +13,13 @@ public open class Any {
     /*primary*/ public constructor Any()
 }
 
-public final class Array</*0*/ reified T> {
+public final class Array</*0*/ reified T> : kotlin.Cloneable {
     /*primary*/ public constructor Array</*0*/ reified T>(/*0*/ size: kotlin.Int, /*1*/ init: kotlin.Function1<kotlin.Int, T>)
     public final val indices: kotlin.IntRange
         public final fun <get-indices>(): kotlin.IntRange
     public final val size: kotlin.Int
         public final fun <get-size>(): kotlin.Int
+    public open override /*1*/ fun clone(): kotlin.Array<T>
     public final fun get(/*0*/ index: kotlin.Int): T
     public final fun iterator(): kotlin.Iterator<T>
     public final fun set(/*0*/ index: kotlin.Int, /*1*/ value: T): kotlin.Unit
@@ -33,12 +34,13 @@ public final class Boolean : kotlin.Comparable<kotlin.Boolean> {
     public final fun xor(/*0*/ other: kotlin.Boolean): kotlin.Boolean
 }
 
-public final class BooleanArray {
+public final class BooleanArray : kotlin.Cloneable {
     /*primary*/ public constructor BooleanArray(/*0*/ size: kotlin.Int)
     public final val indices: kotlin.IntRange
         public final fun <get-indices>(): kotlin.IntRange
     public final val size: kotlin.Int
         public final fun <get-size>(): kotlin.Int
+    public open override /*1*/ fun clone(): kotlin.BooleanArray
     public final fun get(/*0*/ index: kotlin.Int): kotlin.Boolean
     public final fun iterator(): kotlin.BooleanIterator
     public final fun set(/*0*/ index: kotlin.Int, /*1*/ value: kotlin.Boolean): kotlin.Unit
@@ -115,12 +117,13 @@ public final class Byte : kotlin.Number, kotlin.Comparable<kotlin.Byte> {
     public open override /*1*/ fun toShort(): kotlin.Short
 }
 
-public final class ByteArray {
+public final class ByteArray : kotlin.Cloneable {
     /*primary*/ public constructor ByteArray(/*0*/ size: kotlin.Int)
     public final val indices: kotlin.IntRange
         public final fun <get-indices>(): kotlin.IntRange
     public final val size: kotlin.Int
         public final fun <get-size>(): kotlin.Int
+    public open override /*1*/ fun clone(): kotlin.ByteArray
     public final fun get(/*0*/ index: kotlin.Int): kotlin.Byte
     public final fun iterator(): kotlin.ByteIterator
     public final fun set(/*0*/ index: kotlin.Int, /*1*/ value: kotlin.Byte): kotlin.Unit
@@ -235,12 +238,13 @@ public final class Char : kotlin.Comparable<kotlin.Char> {
     public final fun toShort(): kotlin.Short
 }
 
-public final class CharArray {
+public final class CharArray : kotlin.Cloneable {
     /*primary*/ public constructor CharArray(/*0*/ size: kotlin.Int)
     public final val indices: kotlin.IntRange
         public final fun <get-indices>(): kotlin.IntRange
     public final val size: kotlin.Int
         public final fun <get-size>(): kotlin.Int
+    public open override /*1*/ fun clone(): kotlin.CharArray
     public final fun get(/*0*/ index: kotlin.Int): kotlin.Char
     public final fun iterator(): kotlin.CharIterator
     public final fun set(/*0*/ index: kotlin.Int, /*1*/ value: kotlin.Char): kotlin.Unit
@@ -307,6 +311,10 @@ public trait CharSequence {
     public abstract fun get(/*0*/ index: kotlin.Int): kotlin.Char
 }
 
+public trait Cloneable {
+    protected open fun clone(): kotlin.Any
+}
+
 public trait Collection</*0*/ out E> : kotlin.Iterable<E> {
     public abstract fun contains(/*0*/ o: kotlin.Any?): kotlin.Boolean
     public abstract fun containsAll(/*0*/ c: kotlin.Collection<kotlin.Any?>): kotlin.Boolean
@@ -382,12 +390,13 @@ public final class Double : kotlin.Number, kotlin.Comparable<kotlin.Double> {
     public open override /*1*/ fun toShort(): kotlin.Short
 }
 
-public final class DoubleArray {
+public final class DoubleArray : kotlin.Cloneable {
     /*primary*/ public constructor DoubleArray(/*0*/ size: kotlin.Int)
     public final val indices: kotlin.IntRange
         public final fun <get-indices>(): kotlin.IntRange
     public final val size: kotlin.Int
         public final fun <get-size>(): kotlin.Int
+    public open override /*1*/ fun clone(): kotlin.DoubleArray
     public final fun get(/*0*/ index: kotlin.Int): kotlin.Double
     public final fun iterator(): kotlin.DoubleIterator
     public final fun set(/*0*/ index: kotlin.Int, /*1*/ value: kotlin.Double): kotlin.Unit
@@ -607,12 +616,13 @@ public final class Float : kotlin.Number, kotlin.Comparable<kotlin.Float> {
     public open override /*1*/ fun toShort(): kotlin.Short
 }
 
-public final class FloatArray {
+public final class FloatArray : kotlin.Cloneable {
     /*primary*/ public constructor FloatArray(/*0*/ size: kotlin.Int)
     public final val indices: kotlin.IntRange
         public final fun <get-indices>(): kotlin.IntRange
     public final val size: kotlin.Int
         public final fun <get-size>(): kotlin.Int
+    public open override /*1*/ fun clone(): kotlin.FloatArray
     public final fun get(/*0*/ index: kotlin.Int): kotlin.Float
     public final fun iterator(): kotlin.FloatIterator
     public final fun set(/*0*/ index: kotlin.Int, /*1*/ value: kotlin.Float): kotlin.Unit
@@ -905,12 +915,13 @@ public final class Int : kotlin.Number, kotlin.Comparable<kotlin.Int> {
     public final fun xor(/*0*/ other: kotlin.Int): kotlin.Int
 }
 
-public final class IntArray {
+public final class IntArray : kotlin.Cloneable {
     /*primary*/ public constructor IntArray(/*0*/ size: kotlin.Int)
     public final val indices: kotlin.IntRange
         public final fun <get-indices>(): kotlin.IntRange
     public final val size: kotlin.Int
         public final fun <get-size>(): kotlin.Int
+    public open override /*1*/ fun clone(): kotlin.IntArray
     public final fun get(/*0*/ index: kotlin.Int): kotlin.Int
     public final fun iterator(): kotlin.IntIterator
     public final fun set(/*0*/ index: kotlin.Int, /*1*/ value: kotlin.Int): kotlin.Unit
@@ -1074,12 +1085,13 @@ public final class Long : kotlin.Number, kotlin.Comparable<kotlin.Long> {
     public final fun xor(/*0*/ other: kotlin.Long): kotlin.Long
 }
 
-public final class LongArray {
+public final class LongArray : kotlin.Cloneable {
     /*primary*/ public constructor LongArray(/*0*/ size: kotlin.Int)
     public final val indices: kotlin.IntRange
         public final fun <get-indices>(): kotlin.IntRange
     public final val size: kotlin.Int
         public final fun <get-size>(): kotlin.Int
+    public open override /*1*/ fun clone(): kotlin.LongArray
     public final fun get(/*0*/ index: kotlin.Int): kotlin.Long
     public final fun iterator(): kotlin.LongIterator
     public final fun set(/*0*/ index: kotlin.Int, /*1*/ value: kotlin.Long): kotlin.Unit
@@ -1378,12 +1390,13 @@ public final class Short : kotlin.Number, kotlin.Comparable<kotlin.Short> {
     public open override /*1*/ fun toShort(): kotlin.Short
 }
 
-public final class ShortArray {
+public final class ShortArray : kotlin.Cloneable {
     /*primary*/ public constructor ShortArray(/*0*/ size: kotlin.Int)
     public final val indices: kotlin.IntRange
         public final fun <get-indices>(): kotlin.IntRange
     public final val size: kotlin.Int
         public final fun <get-size>(): kotlin.Int
+    public open override /*1*/ fun clone(): kotlin.ShortArray
     public final fun get(/*0*/ index: kotlin.Int): kotlin.Short
     public final fun iterator(): kotlin.ShortIterator
     public final fun set(/*0*/ index: kotlin.Int, /*1*/ value: kotlin.Short): kotlin.Unit