src/vs/editor/contrib/linesOperations/sortLinesCommand.ts/SortLinesCommand/getEditOperations
class SortLinesCommand:	public getEditOperations(model: ITextModel, builder: IEditOperationBuilder): void {
		let op = sortLines(model, this.selection, this.descending);
		if (op) {
			builder.addEditOperation(op.range, op.text);
		}

		this.selectionId = builder.trackSelection(this.selection);
	}