What is the Buddhist view, if any, on witchcraft? I don't think I've seen any talk about this on the Buddhism SE and I'm genuinely curious, since I've heard that Christianity takes a very dim view of the practice. Have any Buddhist texts or teachers made reference to witchcraft or religions that practice it, and if so, was it in a positive / neutral / negative light?

Please note: I'm not really asking whether answerers personally believe that magic / witchcraft exists, so I ask that you stick to the actual question when answering.
This is an interesting question. 

But "witchcraft" is a vague term. In Western culture, it often associates with negative meaning. 

If witchcraft is just a board terminology to cover any practice that's outside common sense and general knowledge, you may say Buddhist texts mentioned about it. Often the text retells the story to forbid such practice. 

I've read the full Mahisasakas Vinaya, in it mentioned several stories related to witchcraft. Often it's due to some Bhiksus were originally Brahmins they brought it to the Samgha. For example, it mentioned the spell to cure snake bites, spell to call upon spirit to animate corpse, or fortune telling, etc. In it it even mentioned the Precept of Not to Kill included the killing by witchcraft (I will need to check the text to cite properly, it's very interesting).

As said, Buddhist texts notice and understand the practice of witchcraft existed, but banned it, or discouraged it. From the Vinaya, if the Bhiksu continued his practice after its made as breaking the precept, he would be expelled. But the texts never mentioned any prosecution of any practitioner. 

From the central teaching of Buddhism, Prajna-paramita is the greatest witchcraft. If anyone wants supernatural power, the best investment is to invest in cultivating wisdom and virtue.