What steps will reproduce the problem?

1. Create a simple WebGL texture, passing null as the image data:
   gl.texImage2D(GL.TEXTURE_2D, 0, GL.RGBA, 1, 1, 0, GL.RGBA, GL.UNSIGNED_BYTE, null);
2. Render any geometry with said texture.

What is the expected output? What do you see instead?
When running with Dartium the texture will render as opaque white. This in and of itself is unexpected, because the WebGL spec specifies that this should be treated as a buffer of sufficient size initialized to 0.

When running with dart2js, however, this function causes the following error to be thrown: "Uncaught Illegal argument(s): Incorrect number or type of arguments"

What version of the product are you using? On what operating system?
Dart SDK version 0.8.10.3_r29803
OSX 10.9

Please provide any additional information below.
Initially reported by @­notch via Twitter: https://twitter.com/notch/status/405745124946100224