syntax_data: {"ast_node_type":"other","tokens":[{"end":43,"kind":"keyword","start":0,"text":"return"}]}
source_snippet:                         return self.mk_err(
context_before:                     if !pointee_ty.is_sized(tcx, self.typing_env) && !pointee_ty.is_slice() {
context_after:                             tcx.dcx().create_err(UnsizedPattern { span, non_sm_ty: *pointee_ty }),