VM: Explicitly load function and context before calling a closure.

runtime/vm/flow_graph_builder.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_FLOW_GRAPH_BUILDER_H_
 #define VM_FLOW_GRAPH_BUILDER_H_
 
 #include "platform/assert.h"
 #include "platform/globals.h"
 #include "vm/allocation.h"
@@ skipping 403 matching lines @@
       intptr_t token_pos,
       const Class& function_class,
       const String& function_name,
       ArgumentListNode* function_arguments,
       int invocation_type);
 
   void BuildStaticSetter(StaticSetterNode* node, bool result_is_needed);
   Definition* BuildStoreStaticField(StoreStaticFieldNode* node,
                                     bool result_is_needed);
 
-  ClosureCallInstr* BuildClosureCall(ClosureCallNode* node);
+  void BuildClosureCall(ClosureCallNode* node, bool result_needed);
 
   Value* BuildNullValue();
 
   // Returns true if the run-time type check can be eliminated.
   bool CanSkipTypeCheck(intptr_t token_pos,
                         Value* value,
                         const AbstractType& dst_type,
                         const String& dst_name);
 
   // Helpers for allocating and deallocating temporary locals on top of the
@@ skipping 129 matching lines @@
   // Output parameters.
   GrowableArray<TargetEntryInstr**> true_successor_addresses_;
   GrowableArray<TargetEntryInstr**> false_successor_addresses_;
 
   intptr_t condition_token_pos_;
 };
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_BUILDER_H_