Add closure object type to debugger wire protocol

runtime/vm/debugger_api_impl.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 "include/dart_debugger_api.h"
 
 #include "vm/class_finalizer.h"
 #include "vm/compiler.h"
 #include "vm/dart_api_impl.h"
 #include "vm/dart_api_state.h"
@@ skipping 584 matching lines @@
       Type::New(super_cls, super_type_args_array, Scanner::kDummyTokenIndex));
   ASSERT(!instantiated_type.IsNull());
   instantiated_type.SetIsFinalized();
   return Api::NewHandle(isolate, instantiated_type.Canonicalize());
 }
 
 
 DART_EXPORT Dart_Handle Dart_GetClosureInfo(
                             Dart_Handle closure,
                             Dart_Handle* name,
+                            Dart_Handle* signature,
                             Dart_CodeLocation* location) {
   Isolate* isolate = Isolate::Current();
   DARTSCOPE(isolate);
   UNWRAP_AND_CHECK_PARAM(Instance, instance, closure);
   CHECK_NOT_NULL(location);
 
   if (!instance.IsClosure()) {
     return Api::NewError("%s: parameter 0 is not a closure", CURRENT_FUNC);
   }
   const Function& func = Function::Handle(Closure::function(instance));
   ASSERT(!func.IsNull());
   if (name != NULL) {
     *name = Api::NewHandle(isolate, func.QualifiedUserVisibleName());
   }
+  if (signature != NULL) {
+    *signature = Api::NewHandle(isolate, func.UserVisibleSignature());
+  }
+
   if (location != NULL) {
     if (func.token_pos() >= 0) {
       const Class& cls = Class::Handle(func.origin());
       ASSERT(!cls.IsNull());
       const Library& lib = Library::Handle(isolate, cls.library());
       ASSERT(!lib.IsNull());
       const Script& script = Script::Handle(cls.script());
       ASSERT(!script.IsNull());
       location->script_url = Api::NewHandle(isolate, script.url());
       location->library_id = lib.index();
@@ skipping 311 matching lines @@
 
 
 DART_EXPORT char* Dart_GetVmStatus(const char* request) {
   if (strncmp(request, "/isolate/", 9) == 0) {
     return Isolate::GetStatus(request);
   }
   return NULL;
 }
 
 }  // namespace dart