[esnext] prototype runtime implementation for async functions

test/mjsunit/mjsunit.js

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 36 matching lines @@
 // values.
 // For known primitive values, please use assertEquals.
 var assertSame;
 
 // Expected and found values are identical primitive values or functions
 // or similarly structured objects (checking internal properties
 // of, e.g., Number and Date objects, the elements of arrays
 // and the properties of non-Array objects).
 var assertEquals;
 
-

[Dan Ehrenberg, 2016/05/16 23:01:16]

Revert the irrelevant deletion

[caitp (gmail), 2016/05/16 23:08:31]

Done.

 // The difference between expected and found value is within certain tolerance.
 var assertEqualsDelta;
 
 // The found object is an Array with the same length and elements
 // as the expected object. The expected object doesn't need to be an Array,
 // as long as it's "array-ish".
 var assertArrayEquals;
 
 // The found object must have the same enumerable properties as the
 // expected object. The type of object isn't checked.
@@ skipping 375 matching lines @@
     if (sync_opt === undefined) sync_opt = "";
     assertTrue(OptimizationStatus(fun, sync_opt) !== 1, name_opt);
   }
 
   assertOptimized = function assertOptimized(fun, sync_opt, name_opt) {
     if (sync_opt === undefined) sync_opt = "";
     assertTrue(OptimizationStatus(fun, sync_opt) !== 2, name_opt);
   }
 
 })();