syntax_data: {"ast_node_type":"other","tokens":[{"end":18,"kind":"keyword","start":0,"text":"};"}]}
source_snippet:                 };
context_before:                     None => self.typeck_results.node_type(expr.hir_id),
context_after:                 let lit_input = LitToConstInput { lit: lit.node, ty: ct_ty, neg: *negated };