KT-20357: Add sample usages for array constructor functions

libraries/stdlib/samples/test/samples/collections/arrays.kt

@@ -534,4 +534,54 @@ class Arrays {
 
     }
 
+    class Constructors {
+        @Sample
+        fun doubleArrayOf() {
+            val doubleArray = doubleArrayOf(1.0, 2.5, 3.14)
+            assertPrints(doubleArray.contentToString(), "[1.0, 2.5, 3.14]")
+        }
+
+        @Sample
+        fun floatArrayOf() {
+            val floatArray = floatArrayOf(1.0f, 2.5f, 3.14f)
+            assertPrints(floatArray.contentToString(), "[1.0, 2.5, 3.14]")
+        }
+
+        @Sample
+        fun longArrayOf() {
+            val longArray = longArrayOf(1L, 2L, 3L)
+            assertPrints(longArray.contentToString(), "[1, 2, 3]")
+        }
+
+        @Sample
+        fun intArrayOf() {
+            val intArray = intArrayOf(1, 2, 3)
+            assertPrints(intArray.contentToString(), "[1, 2, 3]")
+        }
+
+        @Sample
+        fun charArrayOf() {
+            val chars = charArrayOf('a', 'b', 'c')
+            assertPrints(chars.contentToString(), "[a, b, c]")
+        }
+
+        @Sample
+        fun shortArrayOf() {
+            val shortArray = shortArrayOf(1, 2, 3)
+            assertPrints(shortArray.contentToString(), "[1, 2, 3]")
+        }
+
+        @Sample
+        fun byteArrayOf() {
+            val byteArray = byteArrayOf(1, 2, 3)
+            assertPrints(byteArray.contentToString(), "[1, 2, 3]")
+        }
+
+        @Sample
+        fun booleanArrayOf() {
+            val booleanArray = booleanArrayOf(true, false, true)
+            assertPrints(booleanArray.contentToString(), "[true, false, true]")
+        }
+    }
+
 }

libraries/stdlib/src/kotlin/Library.kt

@@ -33,41 +33,57 @@ public expect inline fun <reified T> arrayOf(vararg elements: T): Array<T>
 
 /**
  * Returns an array containing the specified [Double] numbers.
+ *
+ * @sample samples.collections.Arrays.Constructors.doubleArrayOf
  */
 public expect fun doubleArrayOf(vararg elements: Double): DoubleArray
 
 /**
  * Returns an array containing the specified [Float] numbers.
+ *
+ * @sample samples.collections.Arrays.Constructors.floatArrayOf
  */
 public expect fun floatArrayOf(vararg elements: Float): FloatArray
 
 /**
  * Returns an array containing the specified [Long] numbers.
+ *
+ * @sample samples.collections.Arrays.Constructors.longArrayOf
  */
 public expect fun longArrayOf(vararg elements: Long): LongArray
 
 /**
  * Returns an array containing the specified [Int] numbers.
+ *
+ * @sample samples.collections.Arrays.Constructors.intArrayOf
  */
 public expect fun intArrayOf(vararg elements: Int): IntArray
 
 /**
  * Returns an array containing the specified characters.
+ *
+ * @sample samples.collections.Arrays.Constructors.charArrayOf
  */
 public expect fun charArrayOf(vararg elements: Char): CharArray
 
 /**
  * Returns an array containing the specified [Short] numbers.
+ *
+ * @sample samples.collections.Arrays.Constructors.shortArrayOf
  */
 public expect fun shortArrayOf(vararg elements: Short): ShortArray
 
 /**
  * Returns an array containing the specified [Byte] numbers.
+ *
+ * @sample samples.collections.Arrays.Constructors.byteArrayOf
  */
 public expect fun byteArrayOf(vararg elements: Byte): ByteArray
 
 /**
  * Returns an array containing the specified boolean values.
+ *
+ * @sample samples.collections.Arrays.Constructors.booleanArrayOf
  */
 public expect fun booleanArrayOf(vararg elements: Boolean): BooleanArray