Fix opening of print dialog on IE when testing dart2js

Fix opening of print dialog on IE when testing dart2js
Committed: https://code.google.com/p/dart/source/detail?r=13273

[ahe, 2012-10-05 06:40:22]

http://codereview.chromium.org/11033044/diff/1/lib/compiler/implementation/li...
File lib/compiler/implementation/lib/js_helper.dart (right):

http://codereview.chromium.org/11033044/diff/1/lib/compiler/implementation/li...
lib/compiler/implementation/lib/js_helper.dart:399: JS('void', "throw 'Unable to
print message: ' + String(#)", string);
This will throw. I think you need to avoid getting to this line if window is
defined.

[ricow1, 2012-10-05 06:45:16]

http://codereview.chromium.org/11033044/diff/1/lib/compiler/implementation/li...
File lib/compiler/implementation/lib/js_helper.dart (right):

http://codereview.chromium.org/11033044/diff/1/lib/compiler/implementation/li...
lib/compiler/implementation/lib/js_helper.dart:399: JS('void', "throw 'Unable to
print message: ' + String(#)", string);
On 2012/10/05 06:40:22, ahe wrote:
> This will throw. I think you need to avoid getting to this line if window is
> defined.

Done.

[ahe, 2012-10-05 06:46:58]

lgtm