Add constructors for Float32Array and friends.

client/html/generated/src/interface/Uint32Array.dart

Index: client/html/generated/src/interface/Uint32Array.dart
diff --git a/client/html/generated/src/interface/Uint32Array.dart b/client/html/generated/src/interface/Uint32Array.dart
deleted file mode 100644
index 89f3fca698ff76f0060d239b6f1290d787a7253a..0000000000000000000000000000000000000000
--- a/client/html/generated/src/interface/Uint32Array.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// WARNING: Do not edit - generated code.
-
-interface Uint32Array extends ArrayBufferView {
-
-  static final int BYTES_PER_ELEMENT = 4;
-
-  int get length();
-
-  Uint32Array subarray(int start, [int end]);
-}