src/vs/editor/contrib/comment/lineCommentCommand.ts/LineCommentCommand/nextVisibleColumn
class LineCommentCommand:	private static nextVisibleColumn(currentVisibleColumn: number, tabSize: number, isTab: boolean, columnSize: number): number {
		if (isTab) {
			return currentVisibleColumn + (tabSize - (currentVisibleColumn % tabSize));
		}
		return currentVisibleColumn + columnSize;
	}