Native top-level getters not working with Frog

[vsmenon]

I cannot current define:

HTMLDocument get document() { return window.document; }

in dart:dom. I get an error that is$HTMLDocument is undefined on the object (in checked mode). In general, I suspect instanceof-type checks in native types are problematic.

For now, I'm using:

HTMLDocument document;

as a workaround.

[jmesserly]

I think you'll see a similar issue with dynamic get$/set$ methods in DOM too. Only methods are putting the right fallbacks on Object.prototype to lazily patch DOM types, AFAIK

[dgrove]

Please let us know if this should be marked with Milestone-FrogEditor.

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Set owner to @vsmenon.

[jmesserly]

Added Fixed label.

[clayberg]

Issue #855 has been merged into this issue.