Print inlined tree using --print_inline_tree.

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 1022 matching lines @@
 
  protected:
   // Fetch deopt id without checking if this computation can deoptimize.
   intptr_t GetDeoptId() const {
     return deopt_id_;
   }
 
  private:
   friend class FlowGraphPrinter;
   friend class Definition;  // Needed for InsertBefore, InsertAfter.
+  friend class CallSiteInliner;
 
   // Classes that set or read deopt_id_.
   friend class UnboxIntegerInstr;
   friend class UnboxDoubleInstr;
   friend class UnboxFloat32x4Instr;
   friend class UnboxFloat64x2Instr;
   friend class UnboxInt32x4Instr;
   friend class BinaryDoubleOpInstr;
   friend class BinaryFloat32x4OpInstr;
   friend class Float32x4ZeroInstr;
@@ skipping 6669 matching lines @@
   ForwardInstructionIterator* current_iterator_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(FlowGraphVisitor);
 };
 
 
 }  // namespace dart
 
 #endif  // VM_INTERMEDIATE_LANGUAGE_H_