Make unittests work in component build

src/compiler/control-flow-optimizer.h

 // 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.
 
 #ifndef V8_COMPILER_CONTROL_FLOW_OPTIMIZER_H_
 #define V8_COMPILER_CONTROL_FLOW_OPTIMIZER_H_
 
 #include "src/compiler/node-marker.h"
+#include "src/globals.h"
 #include "src/zone/zone-containers.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 // Forward declarations.
 class CommonOperatorBuilder;
 class Graph;
 class MachineOperatorBuilder;
 class Node;
 
-
-class ControlFlowOptimizer final {
+class V8_EXPORT_PRIVATE ControlFlowOptimizer final {
  public:
   ControlFlowOptimizer(Graph* graph, CommonOperatorBuilder* common,
                        MachineOperatorBuilder* machine, Zone* zone);
 
   void Optimize();
 
  private:
   void Enqueue(Node* node);
   void VisitNode(Node* node);
   void VisitBranch(Node* node);
@@ skipping 14 matching lines @@
   Zone* const zone_;
 
   DISALLOW_COPY_AND_ASSIGN(ControlFlowOptimizer);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_CONTROL_FLOW_OPTIMIZER_H_