syntax_data: {"ast_node_type":"other","tokens":[{"end":86,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                     // have to conservatively assume that every region captured by the
context_before:                     // HACK: Because we erase regions contained in the coroutine witness, we
context_after:                     // coroutine has to be live when dropped. This results in a lot of