Change resolving of instance methods to check early for name mismatch.

runtime/lib/mirrors.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_api.h"
 #include "include/dart_debugger_api.h"
 #include "include/dart_mirrors_api.h"
 #include "vm/dart_api_impl.h"
 #include "vm/dart_api_state.h"  // TODO(11742): Remove with CreateMirrorRef.
 #include "vm/bootstrap_natives.h"
@@ skipping 1292 matching lines @@
   const Instance& reflectee =
       Instance::CheckedHandle(arguments->NativeArgAt(1));
 
   const String& function_name =
       String::CheckedHandle(arguments->NativeArgAt(2));
 
   const Array& positional_args =
       Array::CheckedHandle(arguments->NativeArgAt(3));
   intptr_t number_of_arguments = positional_args.Length();
 
-
-  const intptr_t num_receiver = 1;  // 1 for instance methods
   const Array& args =
-      Array::Handle(Array::New(number_of_arguments + num_receiver));
+      Array::Handle(Array::New(number_of_arguments + 1));  // Plus receiver.
   Object& arg = Object::Handle();
   args.SetAt(0, reflectee);
   for (int i = 0; i < number_of_arguments; i++) {
     arg = positional_args.At(i);
-    args.SetAt((i + num_receiver), arg);
+    args.SetAt(i + 1, arg);  // Plus receiver.
   }
 
+  ArgumentsDescriptor args_desc(
+      Array::Handle(ArgumentsDescriptor::New(args.Length())));
   // TODO(11771): This won't find private members.
   const Function& function = Function::Handle(
       Resolver::ResolveDynamic(reflectee,
                                function_name,
-                               (number_of_arguments + 1),
-                               Resolver::kIsQualified));
+                               args_desc));
 
   return ReflectivelyInvokeDynamicFunction(reflectee,
                                            function,
                                            function_name,
                                            args);
 }
 
 
 DEFINE_NATIVE_ENTRY(InstanceMirror_invokeGetter, 3) {
   // Argument 0 is the mirror, which is unused by the native. It exists
@@ skipping 478 matching lines @@
 
 DEFINE_NATIVE_ENTRY(MethodMirror_name, 1) {
   const MirrorReference& func_ref =
       MirrorReference::CheckedHandle(arguments->NativeArgAt(0));
   Function& func = Function::Handle();
   func ^= func_ref.referent();
   return func.UserVisibleName();
 }
 
 }  // namespace dart