syntax_data: {"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:     // on `Coroutine`s. The latter is somewhat confusing, and probably should be
context_before:     // that need drop, and it also affects the computation of the drop components
context_after:     // a function of `typing_env`. See the HACK comment below for why this is