syntax_data: {"ast_node_type":"variable","tokens":[{"end":53,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:         let body_end = self.body_span.shrink_to_hi();
context_before:         let body_start = self.body_span.shrink_to_lo();
context_after:         diag.tool_only_multipart_suggestion(