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

runtime/vm/object.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 RUNTIME_VM_OBJECT_H_
 #define RUNTIME_VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 1144 matching lines @@
   RawFunction* LookupStaticFunction(const String& name) const;
   RawFunction* LookupStaticFunctionAllowPrivate(const String& name) const;
   RawFunction* LookupConstructor(const String& name) const;
   RawFunction* LookupConstructorAllowPrivate(const String& name) const;
   RawFunction* LookupFactory(const String& name) const;
   RawFunction* LookupFactoryAllowPrivate(const String& name) const;
   RawFunction* LookupFunction(const String& name) const;
   RawFunction* LookupFunctionAllowPrivate(const String& name) const;
   RawFunction* LookupGetterFunction(const String& name) const;
   RawFunction* LookupSetterFunction(const String& name) const;
+  RawFunction* LookupCallFunctionForTypeTest() const;
   RawField* LookupInstanceField(const String& name) const;
   RawField* LookupStaticField(const String& name) const;
   RawField* LookupField(const String& name) const;
   RawField* LookupFieldAllowPrivate(const String& name,
                                     bool instance_only = false) const;
   RawField* LookupInstanceFieldAllowPrivate(const String& name) const;
   RawField* LookupStaticFieldAllowPrivate(const String& name) const;
 
   RawLibraryPrefix* LookupLibraryPrefix(const String& name) const;
 
@@ skipping 5034 matching lines @@
     return raw_ptr()->type_parameter_;
   }
   virtual TokenPosition token_pos() const {
     return AbstractType::Handle(type()).token_pos();
   }
   virtual bool IsInstantiated(TrailPtr trail = NULL) const {
     // It is not possible to encounter an instantiated bounded type with an
     // uninstantiated upper bound. Therefore, we do not need to check if the
     // bound is instantiated. Moreover, doing so could lead into cycles, as in
     // class C<T extends C<C>> { }.
-    return AbstractType::Handle(type()).IsInstantiated();
+    return AbstractType::Handle(type()).IsInstantiated(trail);
   }
   virtual bool IsEquivalent(const Instance& other, TrailPtr trail = NULL) const;
   virtual bool IsRecursive() const;
   virtual RawAbstractType* InstantiateFrom(
       const TypeArguments& instantiator_type_arguments,
       Error* bound_error,
       TrailPtr instantiation_trail,
       TrailPtr bound_trail,
       Heap::Space space) const;
   virtual RawAbstractType* CloneUnfinalized() const;
@@ skipping 2703 matching lines @@
 
 inline void TypeArguments::SetHash(intptr_t value) const {
   // This is only safe because we create a new Smi, which does not cause
   // heap allocation.
   StoreSmi(&raw_ptr()->hash_, Smi::New(value));
 }
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_OBJECT_H_