syntax_data: {"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"Ok(Operand::Constant(Box::new("}]}
source_snippet:                 Ok(Operand::Constant(Box::new(
context_before:             | ExprKind::ConstBlock { .. } => {
context_after:                     as_constant_inner(expr, |_| None, self.tcx)