syntax_data: {"ast_node_type":"other","tokens":[{"end":39,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                 // live across a yield.
context_before:                 // The resume arg target location might itself be remapped if its base local is
context_after:                 if let Some(&Some((ty, variant, idx))) = self.remap.get(resume_arg.local) {