fix: Add default value samples

Author: hondaya14

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

@@ -67,22 +67,28 @@ class Arrays {
             assertPrints(emptyArray.getOrElse(0) { "default" }, "default")
 
             val array = arrayOf(1)
+            assertPrints(array.getOrElse(0) { 0 }, "0")
+            assertPrints(array.getOrElse(-1) { 0 }, "0")
             assertPrints(array.getOrElse(0) { "default" }, "1")
             assertPrints(array.getOrElse(-1) { "default" }, "default")
 
             // arrays of primitive types
             val intArray = intArrayOf(1, 2, 3)
             assertPrints(intArray.getOrElse(0) { 0 }, "1")
+            assertPrints(intArray.getOrElse(-1) { 0 }, "0")
 
             val booleanArray = booleanArrayOf(true, false)
             assertPrints(booleanArray.getOrElse(0) { false }, "true")
+            assertPrints(booleanArray.getOrElse(-1) { false }, "false")
 
             val charArray = charArrayOf('a', 'b', 'c')
             assertPrints(charArray.getOrElse(0) { 'z' }, "a")
+            assertPrints(charArray.getOrElse(-1) { 'z' }, "z")
 
             // arrays of unsigned types
             val uIntArray = uintArrayOf(1u, 2u, 3u)
             assertPrints(uIntArray.getOrElse(0) { 10u }, "1")
+            assertPrints(uIntArray.getOrElse(-1) { 10u }, "10u")
         }
     }