Make unittests work in component build

src/compiler/branch-elimination.h

Index: src/compiler/branch-elimination.h
diff --git a/src/compiler/branch-elimination.h b/src/compiler/branch-elimination.h
index 7abeecaf61e85cc9426c4ee44a1c7ea0dd968b1b..3c2cdb25a850133b711a6a8329e4045c543733d5 100644
--- a/src/compiler/branch-elimination.h
+++ b/src/compiler/branch-elimination.h
@@ -5,7 +5,9 @@
 #ifndef V8_COMPILER_BRANCH_CONDITION_ELIMINATION_H_
 #define V8_COMPILER_BRANCH_CONDITION_ELIMINATION_H_
 
+#include "src/base/compiler-specific.h"
 #include "src/compiler/graph-reducer.h"
+#include "src/globals.h"
 
 namespace v8 {
 namespace internal {
@@ -15,8 +17,8 @@ namespace compiler {
 class CommonOperatorBuilder;
 class JSGraph;
 
-
-class BranchElimination final : public AdvancedReducer {
+class V8_EXPORT_PRIVATE BranchElimination final
+    : public NON_EXPORTED_BASE(AdvancedReducer) {
  public:
   BranchElimination(Editor* editor, JSGraph* js_graph, Zone* zone);
   ~BranchElimination() final;