syntax_data: {"ast_node_type":"function","tokens":[{"end":81,"kind":"keyword","start":0,"text":"pub(crate)"}]}
source_snippet:     pub(crate) fn mirror_expr(&mut self, expr: &'tcx hir::Expr<'tcx>) -> ExprId {
context_before:     /// [dev-guide]: https://rustc-dev-guide.rust-lang.org/thir.html
context_after:         // `mirror_expr` is recursing very deep. Make sure the stack doesn't overflow.