Make sure the signature of the call method is finalized before involving it

runtime/vm/dart_api_impl.cc

 // Copyright (c) 2013, 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 "include/dart_mirrors_api.h"
 #include "include/dart_native_api.h"
 
 #include "platform/assert.h"
 #include "lib/stacktrace.h"
@@ skipping 5514 matching lines @@
     AbstractType& type_arg = AbstractType::Handle();
     for (intptr_t i = 0; i < number_of_type_arguments; i++) {
       type_arg ^= array.At(i);
       type_args_obj.SetTypeAt(i, type_arg);
     }
   }
 
   // Construct the type object, canonicalize it and return.
   Type& instantiated_type =
       Type::Handle(Type::New(cls, type_args_obj, TokenPosition::kNoSource));
-  instantiated_type ^= ClassFinalizer::FinalizeType(
-      cls, instantiated_type, ClassFinalizer::kCanonicalize);
+  instantiated_type ^= ClassFinalizer::FinalizeType(cls, instantiated_type);
   return Api::NewHandle(T, instantiated_type.raw());
 }
 
 
 DART_EXPORT Dart_Handle Dart_LibraryUrl(Dart_Handle library) {
   DARTSCOPE(Thread::Current());
   const Library& lib = Api::UnwrapLibraryHandle(Z, library);
   if (lib.IsNull()) {
     RETURN_TYPE_ERROR(Z, library, Library);
   }
@@ skipping 1289 matching lines @@
 }
 
 
 DART_EXPORT void Dart_DumpNativeStackTrace(void* context) {
 #ifndef PRODUCT
   Profiler::DumpStackTrace(context);
 #endif
 }
 
 }  // namespace dart