Fix a bunch of issues with 'hidden' DOM types.

Fix a bunch of issues with 'hidden' DOM types.

Hidden DOM types are types whose prototype is not accessible until you have an instance--they cannot be used at init time.

Issues fixed for these types include:
* "is", type assertions, and getters/setters are now inserted on the prototype lazily
* now patches correct prototype when binding these
* handles incompatible hidden native overloads (rare in practice, but we have a test case for it)

Also some other type check fixes:
* Type checks handle false correctly
* Dart TypeError is now used (before--would pick up the JS one)
* TypeError has an actually usable error message
These last fixes cause some code bloat (lots of type check fallbacks on Object.prototype), but for right now I think it's more important to give good errors.

Committed: https://code.google.com/p/dart/source/detail?r=1916

[Jennifer Messerly, 2011-11-30 06:16:59]

tbr

[sra1, 2011-11-30 23:12:49]

http://codereview.chromium.org/8746005/diff/1001/frog/lib/corelib.dart
File frog/lib/corelib.dart (right):

http://codereview.chromium.org/8746005/diff/1001/frog/lib/corelib.dart#newcode95
frog/lib/corelib.dart:95: this.destType = destType;
BUG: dstType vs destType.

You should add a test that checks the TypeError has the expected content in it's
message.

[Jennifer Messerly, 2011-12-01 00:38:07]

http://codereview.chromium.org/8746005/diff/1001/frog/lib/corelib.dart
File frog/lib/corelib.dart (right):

http://codereview.chromium.org/8746005/diff/1001/frog/lib/corelib.dart#newcode95
frog/lib/corelib.dart:95: this.destType = destType;
On 2011/11/30 23:12:49, sra1 wrote:
> BUG: dstType vs destType.
> 
> You should add a test that checks the TypeError has the expected content in
it's
> message.

Good catch! Hopefully we can make this entire method non-native, once
$typeNameOf is fixed and the strange issue with colliding TypeError types is
fixed.

BTW -- feel free to just check in fixes for one liners like this. :)