syntax_data: {"ast_node_type":"other","tokens":[{"end":61,"kind":"keyword","start":0,"text":"assert_eq!(offsets.len(),"}]}
source_snippet:                     assert_eq!(offsets.len(), members.len());
context_before:                 FieldsShape::Arbitrary { offsets, .. } => {
context_after:                     Self::from_variant(Def::Primitive, None, (ty, layout), layout.size, cx)