src/vs/workbench/contrib/mergeEditor/browser/model/modifiedBaseRange.ts/ModifiedBaseRangeState/swap
class ModifiedBaseRangeState:	public swap(): ModifiedBaseRangeState {
		return new ModifiedBaseRangeState(
			this.input2,
			this.input1,
			!this.input2First,
			this.conflicting
		);
	}