src/vs/workbench/contrib/mergeEditor/browser/model/textModelDiffs.ts/TextModelDiffs/getResultRange
class TextModelDiffs:	public getResultRange(baseRange: LineRange, reader?: IReader): LineRange {
		let start = this.getResultLine(baseRange.startLineNumber, reader);
		if (typeof start !== 'number') {
			start = start.outputRange.startLineNumber;
		}
		let endExclusive = this.getResultLine(baseRange.endLineNumberExclusive, reader);
		if (typeof endExclusive !== 'number') {
			endExclusive = endExclusive.outputRange.endLineNumberExclusive;
		}

		return LineRange.fromLineNumbers(start, endExclusive);
	}