syntax_data: {"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// Some types -- notably raw ptrs -- can only be dereferenced explicitly.
context_before:     /// The parameter `explicit` indicates if this is an *explicit* dereference.
context_after:     pub fn builtin_deref(self, explicit: bool) -> Option<Ty<'tcx>> {