syntax_data: {"ast_node_type":"other","tokens":[{"end":87,"kind":"keyword","start":0,"text":"ByRef::No"}]}
source_snippet:                 ByRef::No => Rvalue::Use(self.consume_by_copy_or_move(binding.source)),
context_before:             let rvalue = match binding.binding_mode.0 {
context_after:                 ByRef::Yes(mutbl) => {