Add support for interrupting an isolate in the vm. Interrupts are

runtime/bin/run_vm_tests.cc

 // Copyright (c) 2011, 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 <stdio.h>
 
 #include "vm/dart.h"
 #include "vm/unit_test.h"
 
 // TODO(iposva, asiva): This is a placeholder for the real unittest framework.
@@ skipping 53 matching lines @@
     } else {
       test_filter = argv[1];
     }
   } else {
     // First argument is the test name, the rest are vm flags.
     test_filter = argv[1];
     // Remove the first two values from the arguments.
     dart_argc = argc - 2;
     dart_argv = &argv[2];
   }
-  bool set_vm_flags_success = Flags::ProcessCommandLineFlags(dart_argc, dart_argv);
+  bool set_vm_flags_success = Flags::ProcessCommandLineFlags(dart_argc,
+                                                             dart_argv);
   ASSERT(set_vm_flags_success);
-  bool init_success = Dart::InitOnce(NULL);
+  bool init_success = Dart::InitOnce(NULL, NULL);
   ASSERT(init_success);
   // Apply the test filter to all registered tests.
   TestCaseBase::RunAll();
   // Print a warning message if no tests were matched.
   if (test_matches == 0) {
     fprintf(stderr, "No tests matched: %s\n", test_filter);
     return 1;
   }
   return 0;
 }
 
 }  // namespace dart
 
 
 int main(int argc, const char** argv) {
   return dart::Main(argc, argv);
 }