small misspelling fixes.

test/mjsunit/regress/regress-2595.js

 // Copyright 2013 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 21 matching lines @@
 o.x = true;
 delete o.x;  // slow case object
 
 var u = { x: 0, f: function () { return "u"; } };  // object with some other map
 
 function F(x) {
   return x.f();
 }
 
 // First make CALL IC in F go MEGAMORPHIC and ensure that we put the stub
-// that calls p.f (guarded by a negative dictionary lookup on the reciever)
+// that calls p.f (guarded by a negative dictionary lookup on the receiver)
 // into the stub cache
 assertEquals("p", F(o));
 assertEquals("p", F(o));
 assertEquals("u", F(u));
 assertEquals("p", F(o));
 assertEquals("u", F(u));
 
 // Optimize F. We will inline p.f into F guarded by map checked against
 // receiver which does not work for slow case objects.
 %OptimizeFunctionOnNextCall(F);
 assertEquals("p", F(o));
 
 // Add f to o. o's map will *not* change.
 o.f = function () { return "o"; };
 assertEquals("o", F(o));