Add BYTES_PER_ELEMENT property to constructors of typed arrays.

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 162 matching lines @@
 
 // -------------------------------------------------------------------
 
 function SetupTypedArray(arrayId, name, constructor, elementSize) {
   %CheckIsBootstrapping();
   var fun = CreateTypedArrayConstructor(name, elementSize,
                                         arrayId, constructor);
   %SetCode(constructor, fun);
   %FunctionSetPrototype(constructor, new $Object());
 
+  %SetProperty(constructor, "BYTES_PER_ELEMENT", elementSize,
+               READ_ONLY | DONT_ENUM | DONT_DELETE);
   %SetProperty(constructor.prototype,
                "constructor", constructor, DONT_ENUM);
   %SetProperty(constructor.prototype,
                "BYTES_PER_ELEMENT", elementSize,
                READ_ONLY | DONT_ENUM | DONT_DELETE);
   InstallGetter(constructor.prototype, "buffer", TypedArrayGetBuffer);
   InstallGetter(constructor.prototype, "byteOffset", TypedArrayGetByteOffset);
   InstallGetter(constructor.prototype, "byteLength", TypedArrayGetByteLength);
   InstallGetter(constructor.prototype, "length", TypedArrayGetLength);
 
@@ skipping 319 matching lines @@
 
       "getFloat32", DataViewGetFloat32,
       "setFloat32", DataViewSetFloat32,
 
       "getFloat64", DataViewGetFloat64,
       "setFloat64", DataViewSetFloat64
   ));
 }
 
 SetupDataView();