Fixing BeforeUnloadEvent.returnValue

Fixing BeforeUnloadEvent.returnValue

This is an update of https://codereview.chromium.org/54913005/ which was failing on the Dartium bots.

Original is patch #1, fix is #2 (re-ordering the parts in html_dartium).

Issue with the original appears to be that parts have some order-dependency in the VM when executing with --error_on_bad_type, which is used in snapshotting.

Opened bug https://code.google.com/p/dart/issues/detail?id=14721

BUG=
R=vsm@google.com

Committed: https://code.google.com/p/dart/source/detail?r=29766

[vsm, 2013-11-01 19:43:11]

lgtm

https://codereview.chromium.org/55903004/diff/60001/tools/dom/templates/html/...
File tools/dom/templates/html/dartium/html_dartium.darttemplate (right):

https://codereview.chromium.org/55903004/diff/60001/tools/dom/templates/html/...
tools/dom/templates/html/dartium/html_dartium.darttemplate:57: part
'$AUXILIARY_DIR/WrappedEvent.dart';
Can you add a comment pointing to the bug to explain the ordering?  Otherwise,
someone will be tempted to "fix" the non-alpha ordering.  :-)

[blois, 2013-11-01 19:50:16]

https://codereview.chromium.org/55903004/diff/60001/tools/dom/templates/html/...
File tools/dom/templates/html/dartium/html_dartium.darttemplate (right):

https://codereview.chromium.org/55903004/diff/60001/tools/dom/templates/html/...
tools/dom/templates/html/dartium/html_dartium.darttemplate:57: part
'$AUXILIARY_DIR/WrappedEvent.dart';
On 2013/11/01 19:43:12, vsm wrote:
> Can you add a comment pointing to the bug to explain the ordering?  Otherwise,
> someone will be tempted to "fix" the non-alpha ordering.  :-)

Done.

[blois, 2013-11-01 19:53:52]

Committed patchset #3 manually as r29766 (presubmit successful).