syntax_data: {"ast_node_type":"other","tokens":[{"end":60,"kind":"keyword","start":0,"text":"Ok(Rvalue::Cast(cast_kind,"}]}
source_snippet:                 Ok(Rvalue::Cast(cast_kind, source, expr.ty))
context_before:                 let cast_kind = mir_cast_kind(source_ty, expr.ty);
context_after:             },