syntax_data: {"ast_node_type":"other","tokens":[{"end":92,"kind":"keyword","start":0,"text":"implicit_deref_mutbls.clone().map(|mutbl|"}]}
source_snippet:                 implicit_deref_mutbls.clone().map(|mutbl| mutbl.ref_prefix_str()).collect();
context_before:             let suggestion_str: String =
context_after:             self.suggestion.push((pat_span.shrink_to_lo(), suggestion_str));