src/vs/workbench/services/workingCopy/common/workingCopyHistoryTracker.ts/WorkingCopyHistoryTracker/shouldTrackHistoryFromFileOperationEvent
class WorkingCopyHistoryTracker:	private shouldTrackHistoryFromFileOperationEvent(e: FileOperationEvent): e is IFileOperationEventWithMetadata {
		if (!e.isOperation(FileOperation.MOVE)) {
			return false; // only interested in move operations
		}

		return this.shouldTrackHistory(e.target.resource, e.target);
	}