src/vs/workbench/contrib/mergeEditor/browser/model/mergeEditorModel.ts/MergeEditorModel/findModifiedBaseRangesInRange
class MergeEditorModel:	public findModifiedBaseRangesInRange(rangeInBase: LineRange): ModifiedBaseRange[] {
		// TODO use binary search
		return this.modifiedBaseRanges.get().filter(r => r.baseRange.intersects(rangeInBase));
	}