Add Contract tests for JS

compiler/testData/codegen/box/arrays/inlineInitializer.kt

@@ -0,0 +1,16 @@
+class Foo(
+    val width: Int,
+    val height: Int,
+    // This function tells the constructor which cells are alive
+    // if init(i, j) is true, the cell (i, j) is alive
+    init: (Int, Int) -> String
+) {
+    val live: Array<Array<String>> = Array(height) { i -> Array(width) { j -> init(i, j) } }
+}
+
+fun box(): String {
+
+    val foo = Foo(2, 2) { i, j -> if (i == j) (if (i == 0) "O" else "K") else "Fail@[$i, $j]" }
+
+    return foo.live[0][0] + foo.live[1][1]
+}