Make unittests work in component build

src/compiler/instruction-selector.h

Index: src/compiler/instruction-selector.h
diff --git a/src/compiler/instruction-selector.h b/src/compiler/instruction-selector.h
index e638937a67f0c5fbf915eb93fdc39d42229eb2a7..dfb80f458a95be5244b34b11b8b57876e0b46fdf 100644
--- a/src/compiler/instruction-selector.h
+++ b/src/compiler/instruction-selector.h
@@ -12,6 +12,7 @@
 #include "src/compiler/instruction.h"
 #include "src/compiler/machine-operator.h"
 #include "src/compiler/node.h"
+#include "src/globals.h"
 #include "src/zone/zone-containers.h"
 
 namespace v8 {
@@ -42,7 +43,7 @@ class PushParameter {
 };
 
 // Instruction selection generates an InstructionSequence for a given Schedule.
-class InstructionSelector final {
+class V8_EXPORT_PRIVATE InstructionSelector final {
  public:
   // Forward declarations.
   class Features;