Fix queries documentation so that it will work with Dart syntax.
Fix queries documentation so that it will work with Dart syntax.

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Created by MOE: https://github.com/google/moe
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angulardart/angular,angulardart/angular,chalin/angular2,chalin/angular2,matanlurey/angular,angulardart/angular,kevmoo/angular,matanlurey/angular,kevmoo/angular,matanlurey/angular,kevmoo/angular,chalin/angular2