Use a fully qualified type name.

runtime/bin/main.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include <stdlib.h>
 #include <string.h>
 #include <stdio.h>
 
 #include "include/dart_api.h"
 #include "include/dart_tools_api.h"
@@ skipping 895 matching lines @@
           break;
         case Dart_KernelCompilationStatus_Crash:
           *exit_code = kDartFrontendErrorExitCode;
           break;
         case Dart_KernelCompilationStatus_Unknown:
           *exit_code = kErrorExitCode;
           break;
       }
       if (!is_kernel) {
         free(const_cast<uint8_t*>(platform_file));
-        delete reinterpret_cast<kernel::Program*>(kernel_platform);
+        delete reinterpret_cast<dart::kernel::Program*>(kernel_platform);
         return NULL;
       }
     } else if (!isolate_run_app_snapshot) {
       is_kernel = TryReadKernel(script_uri, &kernel_file, &kernel_length);
     }
 
     if (is_kernel) {
       kernel_program = Dart_ReadKernelBinary(kernel_file, kernel_length);
     }
   }
@@ skipping 827 matching lines @@
   Platform::Exit(Process::GlobalExitCode());
 }
 
 }  // namespace bin
 }  // namespace dart
 
 int main(int argc, char** argv) {
   dart::bin::main(argc, argv);
   UNREACHABLE();
 }