syntax_data: {"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"(ty::ValTreeKind::Branch(_),"}]}
source_snippet:             (ty::ValTreeKind::Branch(_), ty::Array(t, _)) if t == u8_type => {
context_before:             },
context_after:                 let bytes = cv.try_to_raw_bytes(self.tcx()).unwrap_or_else(|| {