syntax_data: {"ast_node_type":"variable","tokens":[{"end":87,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:                         if let BackendRepr::Scalar(scalar) = &mut layout.backend_repr {
context_before:                     ty::PatternKind::Range { .. } => {
context_after:                             let variants: Result<Vec<_>, _> = variants