Associate the correct type to method receivers (instead of Dynamic type).

runtime/vm/runtime_entry_test.cc

Index: runtime/vm/runtime_entry_test.cc
===================================================================
--- runtime/vm/runtime_entry_test.cc	(revision 10199)
+++ runtime/vm/runtime_entry_test.cc	(working copy)
@@ -13,18 +13,19 @@
 // Add function to a class and that class to the class dictionary so that
 // frame walking can be used.
 const Function& RegisterFakeFunction(const char* name, const Code& code) {
+  const String& class_name = String::Handle(Symbols::New("ownerClass"));
+  const Script& script = Script::Handle();
+  const Class& owner_class =
+      Class::Handle(Class::New(class_name, script, Scanner::kDummyTokenIndex));
   const String& function_name = String::ZoneHandle(Symbols::New(name));
   const Function& function = Function::ZoneHandle(
       Function::New(function_name, RawFunction::kRegularFunction,
-                    true, false, false, false, 0));
-  Class& cls = Class::ZoneHandle();
-  const Script& script = Script::Handle();
-  cls = Class::New(function_name, script, Scanner::kDummyTokenIndex);
+                    true, false, false, false, owner_class, 0));
   const Array& functions = Array::Handle(Array::New(1));
   functions.SetAt(0, function);
-  cls.SetFunctions(functions);
+  owner_class.SetFunctions(functions);
   Library& lib = Library::Handle(Library::CoreLibrary());
-  lib.AddClass(cls);
+  lib.AddClass(owner_class);
   function.SetCode(code);
   return function;
 }