Remove signature classes from the VM.

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 70 matching lines @@
   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)) {
     // Report if a function with same name (but different arguments) has been
     // found.
     Function& function = Function::Handle();
     if (instance.IsClosure()) {
-      function = Closure::function(instance);
+      function = Closure::Cast(instance).function();
     } else {
       Class& instance_class = Class::Handle(instance.clazz());
       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()) {
@@ skipping 70 matching lines @@
     WarnOnJSIntegralNumTypeTest(instance, instantiator_type_arguments, type);
   }
 
   Error& bound_error = Error::Handle(zone, Error::null());
   const bool is_instance_of = instance.IsInstanceOf(type,
                                                     instantiator_type_arguments,
                                                     &bound_error);
   if (FLAG_trace_type_checks) {
     const char* result_str = is_instance_of ? "true" : "false";
     OS::Print("Native Object.instanceOf: result %s\n", result_str);
-    const Type& instance_type = Type::Handle(instance.GetType());
+    const AbstractType& instance_type =
+        AbstractType::Handle(instance.GetType());
     OS::Print("  instance type: %s\n",
               String::Handle(instance_type.Name()).ToCString());
     OS::Print("  test type: %s\n", String::Handle(type.Name()).ToCString());
     if (!bound_error.IsNull()) {
       OS::Print("  bound error: %s\n", bound_error.ToErrorCString());
     }
   }
   if (!is_instance_of && !bound_error.IsNull()) {
     // Throw a dynamic type error only if the instanceof test fails.
     DartFrameIterator iterator;
@@ skipping 89 matching lines @@
   if (FLAG_warn_on_javascript_compatibility) {
     WarnOnJSIntegralNumTypeTest(instance, instantiator_type_arguments, type);
   }
 
   const bool is_instance_of = instance.IsInstanceOf(type,
                                                     instantiator_type_arguments,
                                                     &bound_error);
   if (FLAG_trace_type_checks) {
     const char* result_str = is_instance_of ? "true" : "false";
     OS::Print("Object.as: result %s\n", result_str);
-    const Type& instance_type = Type::Handle(instance.GetType());
+    const AbstractType& instance_type =
+        AbstractType::Handle(instance.GetType());
     OS::Print("  instance type: %s\n",
               String::Handle(instance_type.Name()).ToCString());
     OS::Print("  cast type: %s\n", String::Handle(type.Name()).ToCString());
     if (!bound_error.IsNull()) {
       OS::Print("  bound error: %s\n", bound_error.ToErrorCString());
     }
   }
   if (!is_instance_of) {
     DartFrameIterator iterator;
     StackFrame* caller_frame = iterator.NextFrame();
@@ skipping 78 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