syntax_data: {"ast_node_type":"other","tokens":[{"end":59,"kind":"keyword","start":0,"text":"ty::IntTy::I8"}]}
source_snippet:                 ty::IntTy::I8 => Some(ty::ClosureKind::Fn),
context_before:             Int(int_ty) => match int_ty {
context_after:                 ty::IntTy::I16 => Some(ty::ClosureKind::FnMut),