syntax_data: {"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"BackendRepr::ScalarPair(..)"}]}
source_snippet:             BackendRepr::ScalarPair(..) | BackendRepr::Scalar(..) => (),
context_before:         match layout.backend_repr {
context_after:             _ => bug!("receiver type has unsupported layout: {:?}", layout),