syntax_data: {"ast_node_type":"other","tokens":[{"end":97,"kind":"keyword","start":0,"text":"ty::Dynamic(trait_ty.fold_with(folder),"}]}
source_snippet:                 ty::Dynamic(trait_ty.fold_with(folder), region.fold_with(folder), representation)
context_before:             ty::Dynamic(trait_ty, region, representation) => {
context_after:             }