Yao 831b49efaf @types/quixote - make attributes in ElementDescriptor optional (#23089) ...

When do assertion, you need not to provide all options
somethings like 
```
        button.assert({
            width: container.width
        } );
```
is also ok from official doc.

2018-01-26 09:16:06 -08:00

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index.d.ts

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quixote-tests.ts

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tsconfig.json

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tslint.json

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