Rename destructuring flag to "--harmony-destructuring-bind"

test/mjsunit/harmony/destructuring-parameters-literalcount.js

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
-// Flags: --harmony-destructuring
+// Flags: --harmony-destructuring-bind
 // Flags: --allow-natives-syntax
 
 
 var t1 = [1];
 var t2 = [2];
 var t3 = [3];
 var t4 = [4];
 var t5 = [5];
 function g({x = {a:10,b:20}},
            {y = [1,2,3],
@@ skipping 16 matching lines @@
           p = /abc/ }) => {
     assertSame(10, x.a);
     assertSame(20, x.b);
     assertSame(2, y[1]);
     assertSame(0, n.length);
     assertTrue(p.test("abc"));
   };
 h({},{});
 %OptimizeFunctionOnNextCall(h);
 h({},{});