VM: Remove unnecessary field use_kind from IL instructions.

runtime/vm/flow_graph_builder.cc

 // 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.
 
 #include "vm/flow_graph_builder.h"
 
 #include "lib/invocation_mirror.h"
 #include "vm/ast_printer.h"
 #include "vm/bit_vector.h"
 #include "vm/class_finalizer.h"
@@ skipping 540 matching lines @@
     exit()->LinkTo(other_fragment.entry());
   }
   exit_ = other_fragment.exit();
 }
 
 
 Value* EffectGraphVisitor::Bind(Definition* definition) {
   ASSERT(is_open());
   owner()->DeallocateTemps(definition->InputCount());
   owner()->add_args_pushed(-definition->ArgumentCount());
-  definition->set_use_kind(Definition::kValue);
   definition->set_temp_index(owner()->AllocateTemp());
   if (is_empty()) {
     entry_ = definition;
   } else {
     exit()->LinkTo(definition);
   }
   exit_ = definition;
   return new Value(definition);
 }
 
 
 void EffectGraphVisitor::Do(Definition* definition) {
   ASSERT(is_open());
   owner()->DeallocateTemps(definition->InputCount());
   owner()->add_args_pushed(-definition->ArgumentCount());
-  definition->set_use_kind(Definition::kEffect);
   if (is_empty()) {
     entry_ = definition;
   } else {
     exit()->LinkTo(definition);
   }
   exit_ = definition;
 }
 
 
 void EffectGraphVisitor::AddInstruction(Instruction* instruction) {
@@ skipping 3380 matching lines @@
                                   LanguageError::kBailout,
                                   Heap::kNew,
                                   "FlowGraphBuilder Bailout: %s %s",
                                   String::Handle(function.name()).ToCString(),
                                   reason));
   Isolate::Current()->long_jump_base()->Jump(1, error);
   UNREACHABLE();
 }
 
 }  // namespace dart