syntax_data: {"ast_node_type":"variable","tokens":[{"end":45,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:         let variant = def.non_enum_variant();
context_before:         assert!(def.repr().simd(), "`simd_size_and_type` called on non-SIMD type");
context_after:         assert_eq!(variant.fields.len(), 1);