src/vs/editor/common/model/textModel.ts/TextModel/getAllDecorations
class TextModel:	public getAllDecorations(ownerId: number = 0, filterOutValidation: boolean = false): model.IModelDecoration[] {
		let result = this._decorationsTree.getAll(this, ownerId, filterOutValidation, false);
		result = result.concat(this._decorationProvider.getAllDecorations(ownerId, filterOutValidation));
		return result;
	}