fix StrDup memory leak in CcTest

test/cctest/cctest.h

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 80 matching lines @@
   using i::Heap::AllocateMap;
   using i::Heap::CopyCode;
 };
 
 
 class CcTest {
  public:
   typedef void (TestFunction)();
   CcTest(TestFunction* callback, const char* file, const char* name,
          const char* dependency, bool enabled, bool initialize);
+  ~CcTest() { i::DeleteArray(file_); }
   void Run();
   static CcTest* last() { return last_; }
   CcTest* prev() { return prev_; }
   const char* file() { return file_; }
   const char* name() { return name_; }
   const char* dependency() { return dependency_; }
   bool enabled() { return enabled_; }
 
   static v8::Isolate* isolate() {
     CHECK(isolate_ != NULL);
@@ skipping 389 matching lines @@
     CHECK_EQ(0, heap_profiler_->heap_object_map()->FindUntrackedObjects());
     heap_profiler_->StopHeapObjectsTracking();
   }
 
  private:
   i::HeapProfiler* heap_profiler_;
 };
 
 
 #endif  // ifndef CCTEST_H_