Provide toTypedArray method for primitive arrays.

js/js.libraries/src/core/kotlin_special.kt

@@ -489,3 +489,59 @@ public inline fun ShortArray.plus(element: Short): ShortArray {
     return (this: dynamic).concat(arrayOf(element))
 }
 
+/**
+ * Returns a *typed* object array containing all of the elements of this primitive array.
+ */
+public fun BooleanArray.toTypedArray(): Array<Boolean> {
+    return copyOf() as Array<Boolean>
+}
+
+/**
+ * Returns a *typed* object array containing all of the elements of this primitive array.
+ */
+public fun ByteArray.toTypedArray(): Array<Byte> {
+    return copyOf() as Array<Byte>
+}
+
+/**
+ * Returns a *typed* object array containing all of the elements of this primitive array.
+ */
+public fun CharArray.toTypedArray(): Array<Char> {
+    return copyOf() as Array<Char>
+}
+
+/**
+ * Returns a *typed* object array containing all of the elements of this primitive array.
+ */
+public fun DoubleArray.toTypedArray(): Array<Double> {
+    return copyOf() as Array<Double>
+}
+
+/**
+ * Returns a *typed* object array containing all of the elements of this primitive array.
+ */
+public fun FloatArray.toTypedArray(): Array<Float> {
+    return copyOf() as Array<Float>
+}
+
+/**
+ * Returns a *typed* object array containing all of the elements of this primitive array.
+ */
+public fun IntArray.toTypedArray(): Array<Int> {
+    return copyOf() as Array<Int>
+}
+
+/**
+ * Returns a *typed* object array containing all of the elements of this primitive array.
+ */
+public fun LongArray.toTypedArray(): Array<Long> {
+    return copyOf() as Array<Long>
+}
+
+/**
+ * Returns a *typed* object array containing all of the elements of this primitive array.
+ */
+public fun ShortArray.toTypedArray(): Array<Short> {
+    return copyOf() as Array<Short>
+}
+