Make unittests work in component build

src/compiler-dispatcher/compiler-dispatcher-tracer.h

 // Copyright 2016 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_DISPATCHER_COMPILER_DISPATCHER_TRACER_H_
 #define V8_COMPILER_DISPATCHER_COMPILER_DISPATCHER_TRACER_H_
 
 #include <utility>
 
 #include "src/base/macros.h"
 #include "src/base/platform/mutex.h"
 #include "src/base/ring-buffer.h"
 #include "src/counters.h"
+#include "src/globals.h"
 
 namespace v8 {
 namespace internal {
 
 class Isolate;
 class RuntimeCallStats;
 
 #define COMPILER_DISPATCHER_TRACE_SCOPE_WITH_NUM(tracer, scope_id, num)      \
   CompilerDispatcherTracer::ScopeID tracer_scope_id(                         \
       CompilerDispatcherTracer::ScopeID::scope_id);                          \
   CompilerDispatcherTracer::Scope trace_scope(tracer, tracer_scope_id, num); \
   TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("v8.compile"),                      \
                CompilerDispatcherTracer::Scope::Name(tracer_scope_id))
 
 #define COMPILER_DISPATCHER_TRACE_SCOPE(tracer, scope_id) \
   COMPILER_DISPATCHER_TRACE_SCOPE_WITH_NUM(tracer, scope_id, 0)
 
-class CompilerDispatcherTracer {
+class V8_EXPORT_PRIVATE CompilerDispatcherTracer {
  public:
   enum class ScopeID {
     kPrepareToParse,
     kParse,
     kFinalizeParsing,
     kPrepareToCompile,
     kCompile,
     kFinalizeCompiling
   };
 
@@ skipping 46 matching lines @@
 
   RuntimeCallStats* runtime_call_stats_;
 
   DISALLOW_COPY_AND_ASSIGN(CompilerDispatcherTracer);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_DISPATCHER_COMPILER_DISPATCHER_TRACER_H_