Make unittests work in component build

src/register-configuration.h

Index: src/register-configuration.h
diff --git a/src/register-configuration.h b/src/register-configuration.h
index 2cb7c91eec83a052ddbf0a2bac59b044096d5636..cd09a88988d75b75c5f6383e01ee48877f64b1c4 100644
--- a/src/register-configuration.h
+++ b/src/register-configuration.h
@@ -6,6 +6,7 @@
 #define V8_COMPILER_REGISTER_CONFIGURATION_H_
 
 #include "src/base/macros.h"
+#include "src/globals.h"
 #include "src/machine-type.h"
 
 namespace v8 {
@@ -13,7 +14,7 @@ namespace internal {
 
 // An architecture independent representation of the sets of registers available
 // for instruction creation.
-class RegisterConfiguration {
+class V8_EXPORT_PRIVATE RegisterConfiguration {
  public:
   enum AliasingKind {
     // Registers alias a single register of every other size (e.g. Intel).