schemagen invalid output

[mensinda]

This minimal schema:

schema {
  query: RootQuery
}

type RootQuery {
  test: Int!
}

produces this ApiSchema.h, which cloese the object namespace in the wrong location:

// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.

#pragma once

#include <graphqlservice/GraphQLService.h>
#include <memory>
#include <string>
#include <vector>

namespace graphql {
namespace introspection {

class Schema;
class ObjectType;

} /* namespace introspection */

namespace roll42 {

namespace object {

class RootQuery;

class Operations : public service::Request {
 public:
  Operations(std::shared_ptr<object::RootQuery> query);

 private:
  std::shared_ptr<object::RootQuery> _query;
};

void AddRootQueryDetails(std::shared_ptr<introspection::ObjectType> typeRootQuery,
                         std::shared_ptr<introspection::Schema>     schema);

void AddTypesToSchema(std::shared_ptr<introspection::Schema> schema);

} /* namespace object */
} /* namespace roll42 */
} /* namespace graphql */

This only happens when --separate-files is used. This happens both with the latest master and v3.0.3.