text: load("bf4b12814bc95f34eeb130127d8438ab.js");
  load("93fae755edd261212639eed30afa2ca4.js");
  // Copyright (C) 2015 the V8 project authors. All rights reserved.
  // This code is governed by the BSD license found in the LICENSE file.
  
  /*---
  description: Stops match execution after first match failure
  es6id: 21.2.5.2
  info: >
      21.2.5.2 RegExp.prototype.exec ( string )
  
      [...]
      6. Return RegExpBuiltinExec(R, S).
  
      21.2.5.2.2 Runtime Semantics: RegExpBuiltinExec ( R, S )
  
      [...]
      4. Let lastIndex be ToLength(Get(R,"lastIndex")).
      [...]
      8. Let sticky be ToBoolean(Get(R, "sticky")).
      [...]
      15. Repeat, while matchSucceeded is false
          [...]
          b. Let r be matcher(S, lastIndex).
          c. If r is failure, then
             i. If sticky is true, then
                [...]
                3. Return null.
  ---*/
  
  assert.sameValue(/b/y.exec('ab'), null);
  