syntax_data: {"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"self.thir.exprs.push(upvars)"}]}
source_snippet:                         self.thir.exprs.push(upvars)
context_before:                         let upvars = self.capture_upvar(expr, captured_place, ty);
context_after:                     })