syntax_data: {"ast_node_type":"other","tokens":[{"end":42,"kind":"keyword","start":0,"text":"|"}]}
source_snippet:         | ExprKind::ThreadLocalRef(_) => {
context_before:         | ExprKind::OffsetOf { .. }
context_after:             error(GenericConstantTooComplexSub::OperationNotSupported(node.span))?