syntax_data: {"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"this.in_if_then_scope(condition_scope,"}]}
source_snippet:                     this.in_if_then_scope(condition_scope, expr.span, |this| {
context_before:                 let (then_block, else_block) =
context_after:                         this.then_else_break(