Coverage: missing tests for Array.prototype.reverse method. Fixes gh-2902

test/built-ins/Array/prototype/reverse/array-has-one-entry.js

@@ -0,0 +1,23 @@
+// Copyright (c) 2020 Rick Waldron.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-array.prototype.reverse
+description: Array.prototype.reverse should not iterate items if there is only one entry
+info: |
+  Array.prototype.reverse ( )
+
+  Let O be ? ToObject(this value).
+  Let len be ? LengthOfArrayLike(O).
+  Let middle be floor(len / 2).
+  Let lower be 0.
+  Repeat, while lower ≠ middle,
+    ...
+  Return O.
+---*/
+
+let a = [1];
+
+Object.freeze(a);
+
+a.reverse();