Cleaning up the TableElement API

Cleaning up the TableElement API

Basically just converting to more proper types for a number of the APIs.

BUG=

Committed: https://code.google.com/p/dart/source/detail?r=19175

[sra1, 2013-02-27 03:01:10]

lgtm if you can fix the wrapper problem, at least for iterators.

https://codereview.chromium.org/12320102/diff/5002/tools/dom/src/WrappedList....
File tools/dom/src/WrappedList.dart (right):

https://codereview.chromium.org/12320102/diff/5002/tools/dom/src/WrappedList....
tools/dom/src/WrappedList.dart:31: dynamic combine(var previousValue, E
element)) =>
you can drop 'dynamic' and 'var'

https://codereview.chromium.org/12320102/diff/5002/tools/dom/src/WrappedList....
tools/dom/src/WrappedList.dart:40: List<E> toList() => _list.toList();
The type could be wrong here and other methods returning parameterized types.

given

  B extends A
  C extends A

wr = new WrappedList<B>(new List<A>())

wr is List<C>            ==> false  (B and C are not on same path to root)
(wr.toList() is List<C>) ==> true   (A and C are!)

Basically, you need to create the helper classes with <E>, but they are in
_collection_dev, which is a strong reason this wrapping class should be provided
by dart:collection.

https://codereview.chromium.org/12320102/diff/5002/tools/dom/templates/html/i...
File tools/dom/templates/html/impl/impl_HTMLTableElement.darttemplate (right):

https://codereview.chromium.org/12320102/diff/5002/tools/dom/templates/html/i...
tools/dom/templates/html/impl/impl_HTMLTableElement.darttemplate:12: new
_WrappedList<TableSectionElement>($dom_tBodies);
indent +4

[blois, 2013-02-27 22:18:13]

Committed patchset #1 manually as r19175 (presubmit successful).