Allow parameterless typed array constructors.

src/typedarray.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 71 matching lines @@
     %TypedArrayInitialize(obj, arrayId, buffer, 0, byteLength);
     for (var i = 0; i < l; i++) {
       obj[i] = arrayLike[i];
     }
   }
 
   return function (arg1, arg2, arg3) {
     if (%_IsConstructCall()) {
       if (IS_ARRAYBUFFER(arg1)) {
         ConstructByArrayBuffer(this, arg1, arg2, arg3);
-      } else if (IS_NUMBER(arg1) || IS_STRING(arg1) || IS_BOOLEAN(arg1)) {
+      } else if (IS_NUMBER(arg1) || IS_STRING(arg1) ||
+                 IS_BOOLEAN(arg1) || IS_UNDEFINED(arg1)) {
         ConstructByLength(this, arg1);
-      } else if (!IS_UNDEFINED(arg1)){
+      } else {
         ConstructByArrayLike(this, arg1);
-      } else {
-        throw MakeTypeError("parameterless_typed_array_constr", [name]);
       }
     } else {
       throw MakeTypeError("constructor_not_function", [name])
     }
   }
 }
 
 function TypedArrayGetBuffer() {
   return %TypedArrayGetBuffer(this);
 }
@@ skipping 358 matching lines @@
 
       "getFloat32", DataViewGetFloat32,
       "setFloat32", DataViewSetFloat32,
 
       "getFloat64", DataViewGetFloat64,
       "setFloat64", DataViewSetFloat64
   ));
 }
 
 SetupDataView();