Add Array.prototype.indexOf test

test/built-ins/Array/prototype/indexOf/length-zero-returns-minus-one.js

@@ -0,0 +1,22 @@
+// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-array.prototype.indexof
+description: >
+  Returns -1 if length is 0.
+info: |
+  Array.prototype.indexOf ( searchElement [ , fromIndex ] )
+
+  1. Let O be ? ToObject(this value).
+  2. Let len be ? LengthOfArrayLike(O).
+  3. If len is 0, return -1.
+---*/
+
+var fromIndex = {
+  valueOf: function() {
+    throw new Test262Error("Length should be checked before ToInteger(fromIndex).");
+  },
+};
+
+assert.sameValue([].indexOf(1), -1);
+assert.sameValue([].indexOf(2, fromIndex), -1);