Better error message for unresolved super calls

runtime/lib/object.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 "vm/bootstrap_natives.h"
 
 #include "lib/invocation_mirror.h"
 #include "vm/code_patcher.h"
 #include "vm/exceptions.h"
 #include "vm/heap.h"
@@ skipping 64 matching lines @@
   GET_NON_NULL_NATIVE_ARGUMENT(Instance, func_args, arguments->NativeArgAt(4));
   GET_NON_NULL_NATIVE_ARGUMENT(Instance, func_named_args,
                                arguments->NativeArgAt(5));
   const Array& dart_arguments = Array::Handle(Array::New(6));
   dart_arguments.SetAt(0, instance);
   dart_arguments.SetAt(1, member_name);
   dart_arguments.SetAt(2, invocation_type);
   dart_arguments.SetAt(3, func_args);
   dart_arguments.SetAt(4, func_named_args);
 
-  if (is_method.value() &&
-      (((invocation_type.Value() >> InvocationMirror::kCallShift) &
-        InvocationMirror::kCallMask) != InvocationMirror::kSuper)) {
+  if (is_method.value()) {
     // Report if a function with same name (but different arguments) has been
     // found.
     Function& function = Function::Handle();
     if (instance.IsClosure()) {
       function = Closure::Cast(instance).function();
     } else {
       Class& instance_class = Class::Handle(instance.clazz());
-      function = instance_class.LookupDynamicFunction(member_name);
+      const bool is_super_call =
+          ((invocation_type.Value() >> InvocationMirror::kCallShift) &
+           InvocationMirror::kCallMask) == InvocationMirror::kSuper;
+      if (!is_super_call) {
+        function = instance_class.LookupDynamicFunction(member_name);
+      }
       while (function.IsNull()) {
         instance_class = instance_class.SuperClass();
         if (instance_class.IsNull()) break;
         function = instance_class.LookupDynamicFunction(member_name);
       }
     }
     if (!function.IsNull()) {
       const intptr_t total_num_parameters = function.NumParameters();
       const Array& array = Array::Handle(Array::New(total_num_parameters - 1));
       // Skip receiver.
@@ skipping 296 matching lines @@
 
 DEFINE_NATIVE_ENTRY(Internal_inquireIs64Bit, 0) {
 #if defined(ARCH_IS_64_BIT)
   return Bool::True().raw();
 #else
   return Bool::False().raw();
 #endif  // defined(ARCH_IS_64_BIT)
 }
 
 }  // namespace dart