[profiler] Fix a memory leak of CodeEvent objects

test/cctest/test-profile-generator.cc

Index: test/cctest/test-profile-generator.cc
diff --git a/test/cctest/test-profile-generator.cc b/test/cctest/test-profile-generator.cc
index 71728924dbe8af5280ed2b170a099a8a6d6473f8..412d4687c71bdc7879637568a69593b38e9118fb 100644
--- a/test/cctest/test-profile-generator.cc
+++ b/test/cctest/test-profile-generator.cc
@@ -350,7 +350,7 @@ TEST(RecordTickSample) {
   CpuProfiler profiler(isolate);
   profiles.set_cpu_profiler(&profiler);
   profiles.StartProfiling("", false);
-  ProfileGenerator generator(isolate, &profiles);
+  ProfileGenerator generator(&profiles);
   CodeEntry* entry1 = new CodeEntry(i::Logger::FUNCTION_TAG, "aaa");
   CodeEntry* entry2 = new CodeEntry(i::Logger::FUNCTION_TAG, "bbb");
   CodeEntry* entry3 = new CodeEntry(i::Logger::FUNCTION_TAG, "ccc");
@@ -423,7 +423,7 @@ TEST(SampleIds) {
   CpuProfiler profiler(isolate);
   profiles.set_cpu_profiler(&profiler);
   profiles.StartProfiling("", true);
-  ProfileGenerator generator(isolate, &profiles);
+  ProfileGenerator generator(&profiles);
   CodeEntry* entry1 = new CodeEntry(i::Logger::FUNCTION_TAG, "aaa");
   CodeEntry* entry2 = new CodeEntry(i::Logger::FUNCTION_TAG, "bbb");
   CodeEntry* entry3 = new CodeEntry(i::Logger::FUNCTION_TAG, "ccc");
@@ -481,7 +481,7 @@ TEST(NoSamples) {
   CpuProfiler profiler(isolate);
   profiles.set_cpu_profiler(&profiler);
   profiles.StartProfiling("", false);
-  ProfileGenerator generator(isolate, &profiles);
+  ProfileGenerator generator(&profiles);
   CodeEntry* entry1 = new CodeEntry(i::Logger::FUNCTION_TAG, "aaa");
   generator.code_map()->AddCode(ToAddress(0x1500), entry1, 0x200);