syntax_data: {"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"||"}]}
source_snippet:                 || self.cfg.start_new_block(),
context_before:             self.build_exit_tree(if_then_scope.else_drops, region_scope, span, None).map_or_else(
context_after:                 |else_block_and| else_block_and.into_block(),