syntax_data: {"ast_node_type":"other","tokens":[{"end":86,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:             // If our suggestion is to elide redundnt modes, this will be one of them.
context_before:             self.default_mode_labels.insert(default_mode_span, default_ref_mutbl);
context_after:             if self.info.suggest_eliding_modes {