syntax_data: {"ast_node_type":"other","tokens":[{"end":37,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:             // for all unsized types.
context_before:             // The standard library has a blanket Copy impl for shared references and raw pointers,
context_after:             ty::Ref(_, _, hir::Mutability::Not) | ty::RawPtr(..) => true,