syntax_data: {"ast_node_type":"other","tokens":[{"end":92,"kind":"keyword","start":0,"text":"ConstValue::Scalar(Scalar::from_pointer((*alloc_id).into(),"}]}
source_snippet:                     ConstValue::Scalar(Scalar::from_pointer((*alloc_id).into(), &self.tcx));
context_before:                 let const_val =
context_after:                 let const_ = Const::Val(const_val, *ty);