TORO, 672 Fifth Ave, Gaslamp Quarter, San Diego. July 23rd. The 8th Annual Comic Con Bar Crawl is Preview Night's after-hours version — the Gaslamp Quarter during SDCC week, the streets full of people in costume, the bars running themed specials, and the collective energy of San Diego's biggest convention week with nowhere to be until tomorrow. The bar crawl exists at the intersection of convention culture and bar culture, which means the crowd in the Gaslamp on this night is the crowd that knows both. The costumes range from full foam armor builds to people who printed a badge and called it a character. Both are welcome. The Gaslamp …