[turbofan] Reduce memory consumption of graph building

src/compiler/raw-machine-assembler.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_RAW_MACHINE_ASSEMBLER_H_
 #define V8_COMPILER_RAW_MACHINE_ASSEMBLER_H_
 
 #include "src/v8.h"
 
 #include "src/compiler/common-operator.h"
@@ skipping 398 matching lines @@
     return NewNode(common()->Phi(type, 3), n1, n2, n3);
   }
   Node* Phi(MachineType type, Node* n1, Node* n2, Node* n3, Node* n4) {
     return NewNode(common()->Phi(type, 4), n1, n2, n3, n4);
   }
 
   // MachineAssembler is invalid after export.
   Schedule* Export();
 
  protected:
-  virtual Node* MakeNode(const Operator* op, int input_count,
-                         Node** inputs) FINAL;
+  virtual Node* MakeNode(const Operator* op, int input_count, Node** inputs,
+                         bool incomplete) FINAL;
 
   bool ScheduleValid() { return schedule_ != NULL; }
 
   Schedule* schedule() {
     DCHECK(ScheduleValid());
     return schedule_;
   }
 
  private:
   BasicBlock* Use(Label* label);
@@ skipping 10 matching lines @@
   BasicBlock* current_block_;
 
   DISALLOW_COPY_AND_ASSIGN(RawMachineAssembler);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_RAW_MACHINE_ASSEMBLER_H_