Minor cleanup: remove unnecessary argument.

runtime/vm/flow_graph_compiler.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_COMPILER_H_
 #define VM_FLOW_GRAPH_COMPILER_H_
 
 #include "vm/allocation.h"
 #include "vm/assembler.h"
 #include "vm/code_descriptors.h"
@@ skipping 317 matching lines @@
 
   void GenerateInstanceOf(intptr_t token_pos,
                           intptr_t deopt_id,
                           const AbstractType& type,
                           bool negate_result,
                           LocationSummary* locs);
 
   void GenerateInstanceCall(intptr_t deopt_id,
                             intptr_t token_pos,
                             intptr_t argument_count,
-                            const Array& argument_names,
                             LocationSummary* locs,
                             const ICData& ic_data);
 
   void GenerateStaticCall(intptr_t deopt_id,
                           intptr_t token_pos,
                           const Function& function,
                           intptr_t argument_count,
                           const Array& argument_names,
                           LocationSummary* locs,
                           const ICData& ic_data);
@@ skipping 282 matching lines @@
   intptr_t lazy_deopt_pc_offset_;
 
   ZoneGrowableArray<const ICData*>* deopt_id_to_ic_data_;
 
   DISALLOW_COPY_AND_ASSIGN(FlowGraphCompiler);
 };
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_COMPILER_H_