syntax_data: {"ast_node_type":"other","tokens":[{"end":61,"kind":"keyword","start":0,"text":"ExprKind::Repeat"}]}
source_snippet:         ExprKind::Repeat { .. } | ExprKind::Array { .. } => {
context_before:         )?,
context_after:             maybe_supported_error(GenericConstantTooComplexSub::ArrayNotSupported(node.span))?