Minor cleanup: remove unnecessary argument.

runtime/vm/flow_graph_compiler.cc

 // 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.
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_XXX.
 
 #include "vm/flow_graph_compiler.h"
 
 #include "vm/cha.h"
 #include "vm/dart_entry.h"
@@ skipping 815 matching lines @@
   // Even if an intrinsified version of the function was successfully
   // generated, it may fall through to the non-intrinsified method body.
   Intrinsifier::Intrinsify(parsed_function().function(), assembler());
 }
 
 
 void FlowGraphCompiler::GenerateInstanceCall(
     intptr_t deopt_id,
     intptr_t token_pos,
     intptr_t argument_count,
-    const Array& argument_names,
     LocationSummary* locs,
     const ICData& ic_data) {
   ASSERT(!ic_data.IsNull());
   ASSERT(FLAG_propagate_ic_data || (ic_data.NumberOfChecks() == 0));
   uword label_address = 0;
   StubCode* stub_code = isolate()->stub_code();
   if (is_optimizing() && (ic_data.NumberOfChecks() == 0)) {
     if (ic_data.IsClosureCall()) {
       // This IC call may be closure call only.
       label_address = stub_code->ClosureCallInlineCacheEntryPoint();
@@ skipping 550 matching lines @@
   }
   const ICData& ic_data = ICData::ZoneHandle(isolate(), ICData::New(
       parsed_function().function(), String::Handle(isolate(), target.name()),
       arguments_descriptor, deopt_id, num_args_tested));
   ic_data.AddTarget(target);
   (*deopt_id_to_ic_data_)[deopt_id] = &ic_data;
   return &ic_data;
 }
 
 }  // namespace dart