syntax_data: {"ast_node_type":"variable","tokens":[{"end":82,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                         // `let ref_str: &str = <String as Deref>::deref(&place);`
context_before:                         let eq_block = self.cfg.start_new_block();
context_after:                         self.call_deref(