[turbofan] Remove the JSGraph dependency from the ControlFlowOptimizer.

src/compiler/control-flow-optimizer.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/control-flow-optimizer.h"
 
-#include "src/compiler/js-graph.h"
+#include "src/compiler/common-operator.h"
+#include "src/compiler/graph.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
-ControlFlowOptimizer::ControlFlowOptimizer(JSGraph* jsgraph, Zone* zone)
-    : jsgraph_(jsgraph),
+ControlFlowOptimizer::ControlFlowOptimizer(Graph* graph,
+                                           CommonOperatorBuilder* common,
+                                           MachineOperatorBuilder* machine,
+                                           Zone* zone)
+    : graph_(graph),
+      common_(common),
+      machine_(machine),
       queue_(zone),
-      queued_(jsgraph->graph(), 2),
+      queued_(graph, 2),
       zone_(zone) {}
 
 
 void ControlFlowOptimizer::Optimize() {
   Enqueue(graph()->start());
   while (!queue_.empty()) {
     Node* node = queue_.front();
     queue_.pop();
     if (node->IsDead()) continue;
     switch (node->opcode()) {
@@ skipping 231 matching lines @@
   if_true->set_op(common()->IfValue(value));
   if_true->ReplaceInput(0, node);
   Enqueue(if_true);
   if_false->set_op(common()->IfDefault());
   if_false->ReplaceInput(0, node);
   Enqueue(if_false);
   branch->NullAllInputs();
   return true;
 }
 
-
-CommonOperatorBuilder* ControlFlowOptimizer::common() const {
-  return jsgraph()->common();
-}
-
-
-Graph* ControlFlowOptimizer::graph() const { return jsgraph()->graph(); }
-
-
-MachineOperatorBuilder* ControlFlowOptimizer::machine() const {
-  return jsgraph()->machine();
-}
-
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8