Move resolving of natives to a late stage (during code emission). That eliminates unnecessary nativ…

runtime/vm/intermediate_language.h

 // Copyright (c) 2013, 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_INTERMEDIATE_LANGUAGE_H_
 #define VM_INTERMEDIATE_LANGUAGE_H_
 
 #include "vm/allocation.h"
 #include "vm/ast.h"
 #include "vm/growable_array.h"
@@ skipping 3375 matching lines @@
   bool is_dead_;
   bool is_last_;
 
   DISALLOW_COPY_AND_ASSIGN(StoreLocalInstr);
 };
 
 
 class NativeCallInstr : public TemplateDefinition<0, Throws> {
  public:
   explicit NativeCallInstr(NativeBodyNode* node)
-      : ast_node_(*node) {}
+      : ast_node_(*node),
+        native_c_function_(NULL),
+        is_bootstrap_native_(false) { }
 
   DECLARE_INSTRUCTION(NativeCall)
 
   virtual intptr_t token_pos() const { return ast_node_.token_pos(); }
 
   const Function& function() const { return ast_node_.function(); }
 
   const String& native_name() const {
     return ast_node_.native_c_function_name();
   }
 
   NativeFunction native_c_function() const {
-    return ast_node_.native_c_function();
+    return native_c_function_;
   }
 
   bool is_bootstrap_native() const {
-    return ast_node_.is_bootstrap_native();
+    return is_bootstrap_native_;
   }
 
   bool link_lazily() const {
     return ast_node_.link_lazily();
   }
 
   virtual void PrintOperandsTo(BufferFormatter* f) const;
 
   virtual bool CanDeoptimize() const { return false; }
 
   virtual EffectSet Effects() const { return EffectSet::All(); }
 
+  void SetupNative();
+
  private:
+  void set_native_c_function(NativeFunction value) {
+    native_c_function_ = value;
+  }
+
+  void set_is_bootstrap_native(bool value) { is_bootstrap_native_ = value; }
+
   const NativeBodyNode& ast_node_;
+  NativeFunction native_c_function_;
+  bool is_bootstrap_native_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeCallInstr);
 };
 
 
 class DebugStepCheckInstr : public TemplateInstruction<0, NoThrow> {
  public:
   DebugStepCheckInstr(intptr_t token_pos,
                       RawPcDescriptors::Kind stub_kind)
       : token_pos_(token_pos),
@@ skipping 4673 matching lines @@
   LocationSummary* Name::MakeLocationSummary(Zone* zone, bool opt) const {    \
     UNIMPLEMENTED();                                                          \
     return NULL;                                                              \
   }                                                                           \
   void Name::EmitNativeCode(FlowGraphCompiler* compiler) { UNIMPLEMENTED(); }
 
 
 }  // namespace dart
 
 #endif  // VM_INTERMEDIATE_LANGUAGE_H_