src/vs/editor/browser/viewParts/lines/viewLines.ts/ViewLines/visibleRangeForPosition
class ViewLines:	public visibleRangeForPosition(position: Position): HorizontalPosition | null {
		const visibleRanges = this._visibleRangesForLineRange(position.lineNumber, position.column, position.column);
		if (!visibleRanges) {
			return null;
		}
		return new HorizontalPosition(visibleRanges.outsideRenderedLine, visibleRanges.ranges[0].left);
	}