syntax_data: {"ast_node_type":"variable","tokens":[{"end":83,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:         if let Some(scrutinee_place) = scrutinee_place_builder.try_to_place(self) {
context_before:         let scrutinee_place_builder = unpack!(block = self.as_place_builder(block, scrutinee_id));
context_after:             let source_info = self.source_info(scrutinee_span);