Temporary workaround to make VM bots greener.

runtime/bin/isolate_data.h

 // 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.
 
 #ifndef BIN_ISOLATE_DATA_H_
 #define BIN_ISOLATE_DATA_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/globals.h"
@@ skipping 18 matching lines @@
         packages_file(NULL),
         udp_receive_buffer(NULL),
         load_async_id(-1) {
     if (package_root != NULL) {
       ASSERT(packages_file == NULL);
       this->package_root = strdup(package_root);
     } else if (packages_file != NULL) {
       this->packages_file = strdup(packages_file);
     }
   }
+#if 0
   ~IsolateData() {
     free(script_url);
     free(package_root);
     free(packages_file);
     free(udp_receive_buffer);
   }
+#endif
 
   char* script_url;
   char* package_root;
   char* packages_file;
   uint8_t* udp_receive_buffer;
   int64_t load_async_id;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(IsolateData);
 };
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // BIN_ISOLATE_DATA_H_