Reland: Optimizing noSuchMethod invocation with no arguments.

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 VM_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 1377 matching lines @@
   RawCode* closure_allocation_stub() const;
   void set_closure_allocation_stub(const Code& value) const;
 
   void set_extracted_method_closure(const Function& function) const;
   RawFunction* extracted_method_closure() const;
 
   bool IsMethodExtractor() const {
     return kind() == RawFunction::kMethodExtractor;
   }
 
+  bool IsNoSuchMethodDispatcher() const {
+    return kind() == RawFunction::kNoSuchMethodDispatcher;
+  }
+
   // Returns true iff an implicit closure function has been created
   // for this function.
   bool HasImplicitClosureFunction() const {
     return implicit_closure_function() != null();
   }
 
   // Return the closure function implicitly created for this function.
   // If none exists yet, create one and remember it.
   RawFunction* ImplicitClosureFunction() const;
 
@@ skipping 24 matching lines @@
     if (is_static() || is_abstract()) {
       return false;
     }
     switch (kind()) {
       case RawFunction::kRegularFunction:
       case RawFunction::kGetterFunction:
       case RawFunction::kSetterFunction:
       case RawFunction::kImplicitGetter:
       case RawFunction::kImplicitSetter:
       case RawFunction::kMethodExtractor:
+      case RawFunction::kNoSuchMethodDispatcher:
         return true;
       case RawFunction::kClosureFunction:
       case RawFunction::kConstructor:
       case RawFunction::kConstImplicitGetter:
         return false;
       default:
         UNREACHABLE();
         return false;
     }
   }
@@ skipping 4479 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_