syntax_data: {"ast_node_type":"other","tokens":[{"end":17,"kind":"keyword","start":0,"text":"}"}]}
source_snippet:                 }
context_before:                     Self::from_variant(Def::Primitive, None, (ty, layout), layout.size, cx)
context_after:                 FieldsShape::Array { .. } | FieldsShape::Union(_) => Err(Err::NotYetSupported),