syntax_data: {"ast_node_type":"other","tokens":[{"end":92,"kind":"keyword","start":0,"text":"self,"}]}
source_snippet:     self, CanonicalUserType, CanonicalUserTypeAnnotation, Ty, TyCtxt, TypeVisitableExt as _,
context_before: use rustc_middle::ty::{
context_after:     UserTypeAnnotationIndex,