Make unittests work in component build

src/compiler/loop-analysis.h

Index: src/compiler/loop-analysis.h
diff --git a/src/compiler/loop-analysis.h b/src/compiler/loop-analysis.h
index 2d0f27b89fe837bd898e95f185a1abb64e499ee2..fb3e1e753bca4e46d315a96b5335e8509d23ad1c 100644
--- a/src/compiler/loop-analysis.h
+++ b/src/compiler/loop-analysis.h
@@ -8,6 +8,7 @@
 #include "src/base/iterator.h"
 #include "src/compiler/graph.h"
 #include "src/compiler/node.h"
+#include "src/globals.h"
 #include "src/zone/zone-containers.h"
 
 namespace v8 {
@@ -153,7 +154,7 @@ class LoopTree : public ZoneObject {
   ZoneVector<Node*> loop_nodes_;
 };
 
-class LoopFinder {
+class V8_EXPORT_PRIVATE LoopFinder {
  public:
   // Build a loop tree for the entire graph.
   static LoopTree* BuildLoopTree(Graph* graph, Zone* temp_zone);