syntax_data: {"ast_node_type":"other","tokens":[{"end":21,"kind":"keyword","start":0,"text":"TypeVisitableExt,"}]}
source_snippet:     TypeVisitableExt,
context_before:     self, EarlyBinder, FallibleTypeFolder, GenericArgsRef, Ty, TyCtxt, TypeFoldable, TypeFolder,
context_after: };