src/vs/workbench/contrib/bulkEdit/browser/bulkFileEdits.ts/FileUndoRedoElement/_reverse
class FileUndoRedoElement:	private async _reverse() {
		for (let i = 0; i < this.operations.length; i++) {
			const op = this.operations[i];
			const undo = await op.perform(CancellationToken.None);
			this.operations[i] = undo;
		}
	}