test_context_lambda.rb.parse-tree-whitequark.exp

s(:begin,
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    s(:const, nil, :A),
    s(:block,
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      s(:args,
        s(:optarg, :a,
          s(:begin,
            s(:begin,
              s(:return),
              s(:int, "1"))))), nil)),
  s(:class,
    s(:const, nil, :B), nil,
    s(:block,
      s(:send,
        s(:const, nil, :Kernel), :lambda),
      s(:args,
        s(:optarg, :a,
          s(:begin,
            s(:begin,
              s(:return),
              s(:int, "1"))))), nil)))