syntax_data: {"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// Expects the `AdtDef` to be a struct. If it is not, then this will panic.
context_before:     ///
context_after:     fn struct_tail_ty(self, interner: I) -> Option<ty::EarlyBinder<I, I::Ty>>;