So, during game tonight an argument came up, and my group asked me to get clarification from the all powerful devs.
So here it is: the Spellslinger archetype for the wizard class allows the character to, "cast any ranged touch attack, cone, line, or ray spells through his arcane gun." Does that allow the character to then, per say, take 1 level in Spellslinger and 19 levels in witch, and cast their witch spells that are ranged touch, cone, line, or rays through their arcane gun?