Don't print intrinsic flow graph with --print-flow-graph-optimized.

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 1640 matching lines @@
 
   bool HasUses() const {
     return (input_use_list_ != NULL) || (env_use_list_ != NULL);
   }
   bool HasOnlyUse(Value* use) const;
   bool HasOnlyInputUse(Value* use) const;
 
 
   Value* input_use_list() const { return input_use_list_; }
   void set_input_use_list(Value* head) { input_use_list_ = head; }
-  intptr_t InputUseListLength() const {
-    intptr_t length = 0;
-    Value* use = input_use_list_;
-    while (use != NULL) {
-      length++;
-      use = use->next_use();
-    }
-    return length;
-  }
 
   Value* env_use_list() const { return env_use_list_; }
   void set_env_use_list(Value* head) { env_use_list_ = head; }
 
   void AddInputUse(Value* value) { Value::AddToList(value, &input_use_list_); }
   void AddEnvUse(Value* value) { Value::AddToList(value, &env_use_list_); }
 
   // Replace uses of this definition with uses of other definition or value.
   // Precondition: use lists must be properly calculated.
   // Postcondition: use lists and use values are still valid.
@@ skipping 6060 matching lines @@
       Isolate* isolate, bool opt) const {                                     \
     UNIMPLEMENTED();                                                          \
     return NULL;                                                              \
   }                                                                           \
   void Name::EmitNativeCode(FlowGraphCompiler* compiler) { UNIMPLEMENTED(); }
 
 
 }  // namespace dart
 
 #endif  // VM_INTERMEDIATE_LANGUAGE_H_