Give isolates names to be used during debugging.

runtime/vm/dart_api_impl.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 "include/dart_api.h"
 
 #include "vm/bigint_operations.h"
 #include "vm/class_finalizer.h"
 #include "vm/compiler.h"
 #include "vm/dart.h"
@@ skipping 479 matching lines @@
   if (Flags::Lookup(flag_name) != NULL) {
     return true;
   }
   return false;
 }
 
 
 // --- Isolates ---
 
 
-DART_EXPORT Dart_Isolate Dart_CreateIsolate(const uint8_t* snapshot,
+DART_EXPORT Dart_Isolate Dart_CreateIsolate(const char* name_prefix,
+                                            const uint8_t* snapshot,
                                             void* callback_data,
                                             char** error) {
-  Isolate* isolate = Dart::CreateIsolate();
+  Isolate* isolate = Dart::CreateIsolate(name_prefix);
   assert(isolate != NULL);
   LongJump* base = isolate->long_jump_base();
   LongJump jump;
   isolate->set_long_jump_base(&jump);
   if (setjmp(*jump.Set()) == 0) {
     Dart::InitializeIsolate(snapshot, callback_data);
     START_TIMER(time_total_runtime);
     isolate->set_long_jump_base(base);
     return reinterpret_cast<Dart_Isolate>(isolate);
   } else {
@@ skipping 1950 matching lines @@
     }
     delete debug_region;
   } else {
     *buffer = NULL;
     *buffer_size = 0;
   }
 }
 
 
 }  // namespace dart