syntax_data: {"ast_node_type":"function","tokens":[{"end":68,"kind":"keyword","start":0,"text":"pub"}]}
source_snippet:     pub fn builtin_deref(self, explicit: bool) -> Option<Ty<'tcx>> {
context_before:     /// Some types -- notably raw ptrs -- can only be dereferenced explicitly.
context_after:         match *self.kind() {