syntax_data: {"ast_node_type":"other","tokens":[{"end":62,"kind":"keyword","start":0,"text":"UnsafeBinder(binder)"}]}
source_snippet:             UnsafeBinder(binder) => write!(f, "{:?}", binder),
context_before:             // FIXME(unsafe_binder): print this like `unsafe<'a> T<'a>`.
context_after:             Dynamic(p, r, repr) => match repr {