Make unittests work in component build

src/compiler/code-assembler.h

Index: src/compiler/code-assembler.h
diff --git a/src/compiler/code-assembler.h b/src/compiler/code-assembler.h
index 83723345952e72e8cf74812c2c8fd99954bdd293..7571a0d40341aeea103a0d5db08864babbb988ce 100644
--- a/src/compiler/code-assembler.h
+++ b/src/compiler/code-assembler.h
@@ -12,6 +12,7 @@
 // Do not include anything from src/compiler here!
 #include "src/allocation.h"
 #include "src/builtins/builtins.h"
+#include "src/globals.h"
 #include "src/heap/heap.h"
 #include "src/machine-type.h"
 #include "src/runtime/runtime.h"
@@ -171,7 +172,7 @@ class RawMachineLabel;
 // clients, CodeAssembler also provides an abstraction for creating variables
 // and enhanced Label functionality to merge variable values along paths where
 // they have differing values, including loops.
-class CodeAssembler {
+class V8_EXPORT_PRIVATE CodeAssembler {
  public:
   // Create with CallStub linkage.
   // |result_size| specifies the number of results returned by the stub.