test/rgw_iam_policy: do not increase reference counting when boost::i…

…ntrusive_ptr get

When sanitizer is on, unittest_rgw_iam_policy shows

```
=================================================================
==2957634==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 9936 byte(s) in 1 object(s) allocated from:
    #0 0xaaaae4496248 in operator new(unsigned long) (/root/ceph-19.0.0/build/bin/unittest_bluestore_types+0xef6248) (BuildId: f63b15ff165fbd81074275a31e37535a1938809e)
    #1 0xaaaae46b8624 in BlueStore::OnodeCacheShard::create(ceph::common::CephContext*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, ceph::common::PerfCounters*) /root/ceph-19.0.0/src/os/bluestore/BlueStore.cc:1187:7
    #2 0xaaaae44fa8a0 in Blob_put_ref_Test::TestBody() /root/ceph-19.0.0/src/test/objectstore/test_bluestore_types.cc:883:38
    #3 0xaaaae4699aa8 in void testing::internal::HandleSehExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:2605:10
    #4 0xaaaae46470a8 in void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:2641:14
    #5 0xaaaae45f890c in testing::Test::Run() /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:2680:5
    #6 0xaaaae45fa850 in testing::TestInfo::Run() /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:2858:11
    #7 0xaaaae45fbe50 in testing::TestSuite::Run() /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:3012:28
    #8 0xaaaae4617c14 in testing::internal::UnitTestImpl::RunAllTests() /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:5723:44
    #9 0xaaaae46a39a8 in bool testing::internal::HandleSehExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:2605:10
    #10 0xaaaae464e640 in bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:2641:14
    #11 0xaaaae461708c in testing::UnitTest::Run() /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:5306:10
    #12 0xaaaae4564dd4 in RUN_ALL_TESTS() /root/ceph-19.0.0/src/googletest/googletest/include/gtest/gtest.h:2486:46
    #13 0xaaaae4551080 in main /root/ceph-19.0.0/src/test/objectstore/test_bluestore_types.cc:2847:10
    #14 0xffff998b73f8 in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16
    #15 0xffff998b74c8 in __libc_start_main csu/../csu/libc-start.c:392:3
    #16 0xaaaae43e812c in _start (/root/ceph-19.0.0/build/bin/unittest_bluestore_types+0xe4812c) (BuildId: f63b15ff165fbd81074275a31e37535a1938809e)

Direct leak of 9936 byte(s) in 1 object(s) allocated from:
    #0 0xaaaae4496248 in operator new(unsigned long) (/root/ceph-19.0.0/build/bin/unittest_bluestore_types+0xef6248) (BuildId: f63b15ff165fbd81074275a31e37535a1938809e)
    #1 0xaaaae46b8624 in BlueStore::OnodeCacheShard::create(ceph::common::CephContext*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, ceph::common::PerfCounters*) /root/ceph-19.0.0/src/os/bluestore/BlueStore.cc:1187:7
    #2 0xaaaae458ad68 in ExtentMapFixture::ExtentMapFixture() /root/ceph-19.0.0/src/test/objectstore/test_bluestore_types.cc:1307:10
    #3 0xaaaae4595414 in ExtentMapFixture_pollock_Test::ExtentMapFixture_pollock_Test() /root/ceph-19.0.0/src/test/objectstore/test_bluestore_types.cc:1572:1
    #4 0xaaaae4595304 in testing::internal::TestFactoryImpl<ExtentMapFixture_pollock_Test>::CreateTest() /root/ceph-19.0.0/src/googletest/googletest/include/gtest/internal/gtest-internal.h:472:44
    #5 0xaaaae469a054 in testing::Test* testing::internal::HandleSehExceptionsInMethodIfSupported<testing::internal::TestFactoryBase, testing::Test*>(testing::internal::TestFactoryBase*, testing::Test* (testing::internal::TestFactoryBase::*)(), char const*) /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:2605:10
    #6 0xaaaae4647fcc in testing::Test* testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::TestFactoryBase, testing::Test*>(testing::internal::TestFactoryBase*, testing::Test* (testing::internal::TestFactoryBase::*)(), char const*) /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:2641:14
    #7 0xaaaae45fa82c in testing::TestInfo::Run() /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:2848:22
    #8 0xaaaae45fbe50 in testing::TestSuite::Run() /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:3012:28
    #9 0xaaaae4617c14 in testing::internal::UnitTestImpl::RunAllTests() /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:5723:44
    #10 0xaaaae46a39a8 in bool testing::internal::HandleSehExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:2605:10
    #11 0xaaaae464e640 in bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:2641:14
    #12 0xaaaae461708c in testing::UnitTest::Run() /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:5306:10
    #13 0xaaaae4564dd4 in RUN_ALL_TESTS() /root/ceph-19.0.0/src/googletest/googletest/include/gtest/gtest.h:2486:46
    #14 0xaaaae4551080 in main /root/ceph-19.0.0/src/test/objectstore/test_bluestore_types.cc:2847:10
    #15 0xffff998b73f8 in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16
    #16 0xffff998b74c8 in __libc_start_main csu/../csu/libc-start.c:392:3
    #17 0xaaaae43e812c in _start (/root/ceph-19.0.0/build/bin/unittest_bluestore_types+0xe4812c) (BuildId: f63b15ff165fbd81074275a31e37535a1938809e)

Direct leak of 9936 byte(s) in 1 object(s) allocated from:
    #0 0xaaaae4496248 in operator new(unsigned long) (/root/ceph-19.0.0/build/bin/unittest_bluestore_types+0xef6248) (BuildId: f63b15ff165fbd81074275a31e37535a1938809e)
    #1 0xaaaae46b8624 in BlueStore::OnodeCacheShard::create(ceph::common::CephContext*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, ceph::common::PerfCounters*) /root/ceph-19.0.0/src/os/bluestore/BlueStore.cc:1187:7
    #2 0xaaaae45102ac in ExtentMap_has_any_lextents_Test::TestBody() /root/ceph-19.0.0/src/test/objectstore/test_bluestore_types.cc:1154:36
    #3 0xaaaae4699aa8 in void testing::internal::HandleSehExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:2605:10
    #4 0xaaaae46470a8 in void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:2641:14
    #5 0xaaaae45f890c in testing::Test::Run() /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:2680:5
    #6 0xaaaae45fa850 in testing::TestInfo::Run() /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:2858:11
    #7 0xaaaae45fbe50 in testing::TestSuite::Run() /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:3012:28
    #8 0xaaaae4617c14 in testing::internal::UnitTestImpl::RunAllTests() /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:5723:44
    #9 0xaaaae46a39a8 in bool testing::internal::HandleSehExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:2605:10
    #10 0xaaaae464e640 in bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:2641:14
    #11 0xaaaae461708c in testing::UnitTest::Run() /root/ceph-19.0.0/src/googletest/googletest/src/gtest.cc:5306:10
    #12 0xaaaae4564dd4 in RUN_ALL_TESTS() /root/ceph-19.0.0/src/googletest/googletest/include/gtest/gtest.h:2486:46
    #13 0xaaaae4551080 in main /root/ceph-19.0.0/src/test/objectstore/test_bluestore_types.cc:2847:10
    #14 0xffff998b73f8 in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16
    #15 0xffff998b74c8 in __libc_start_main csu/../csu/libc-start.c:392:3
    #16 0xaaaae43e812c in _start (/root/ceph-19.0.0/build/bin/unittest_bluestore_types+0xe4812c) (BuildId: f63b15ff165fbd81074275a31e37535a1938809e)

...
...
...
Indirect leak of 4 byte(s) in 1 object(s) allocated from:
    #0 0xaaaacf905688 in operator new(unsigned long) (/root/ceph/build/bin/unittest_rgw_iam_policy+0x25f5688) (BuildId: c8dd019430a8d0162485760a78979347f29d225f)
    #1 0xffff7f0b7ca8 in ceph::common::CephContext::CephContext(unsigned int, ceph::common::CephContext::create_options const&) /root/ceph/src/common/ceph_context.cc:781:24
    #2 0xffff7f0b514c in ceph::common::CephContext::CephContext(unsigned int, code_environment_t, int) /root/ceph/src/common/ceph_context.cc:697:5
    #3 0xaaaacf997dcc in ManagedPolicyTest::ManagedPolicyTest() /root/ceph/src/test/rgw/test_rgw_iam_policy.cc:788:33
    #4 0xaaaacf998294 in ManagedPolicyTest_IAMReadOnlyAccess_Test::ManagedPolicyTest_IAMReadOnlyAccess_Test() /root/ceph/src/test/rgw/test_rgw_iam_policy.cc:802:1
    #5 0xaaaacf998230 in testing::internal::TestFactoryImpl<ManagedPolicyTest_IAMReadOnlyAccess_Test>::CreateTest() /root/ceph/src/googletest/googletest/include/gtest/internal/gtest-internal.h:472:44
    #6 0xaaaacfb1a2d4 in testing::Test* testing::internal::HandleSehExceptionsInMethodIfSupported<testing::internal::TestFactoryBase, testing::Test*>(testing::internal::TestFactoryBase*, testing::Test* (testing::internal::TestFactoryBase::*)(), char const*) /root/ceph/src/googletest/googletest/src/gtest.cc:2605:10
    #7 0xaaaacfaced5c in testing::Test* testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::TestFactoryBase, testing::Test*>(testing::internal::TestFactoryBase*, testing::Test* (testing::internal::TestFactoryBase::*)(), char const*) /root/ceph/src/googletest/googletest/src/gtest.cc:2641:14
    #8 0xaaaacfa83274 in testing::TestInfo::Run() /root/ceph/src/googletest/googletest/src/gtest.cc:2848:22
    #9 0xaaaacfa84898 in testing::TestSuite::Run() /root/ceph/src/googletest/googletest/src/gtest.cc:3012:28
    #10 0xaaaacfaa065c in testing::internal::UnitTestImpl::RunAllTests() /root/ceph/src/googletest/googletest/src/gtest.cc:5723:44
    #11 0xaaaacfb23b9c in bool testing::internal::HandleSehExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) /root/ceph/src/googletest/googletest/src/gtest.cc:2605:10
    #12 0xaaaacfad4968 in bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) /root/ceph/src/googletest/googletest/src/gtest.cc:2641:14
    #13 0xaaaacfa9fad4 in testing::UnitTest::Run() /root/ceph/src/googletest/googletest/src/gtest.cc:5306:10
    #14 0xaaaacfa23588 in RUN_ALL_TESTS() /root/ceph/src/googletest/googletest/include/gtest/gtest.h:2486:46
    #15 0xaaaacfa23504 in main /root/ceph/src/googletest/googlemock/src/gmock_main.cc:70:10
    #16 0xffff7c5a73f8 in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16
    #17 0xffff7c5a74c8 in __libc_start_main csu/../csu/libc-start.c:392:3
    #18 0xaaaacf85756c in _start (/root/ceph/build/bin/unittest_rgw_iam_policy+0x254756c) (BuildId: c8dd019430a8d0162485760a78979347f29d225f)

Indirect leak of 4 byte(s) in 1 object(s) allocated from:
    #0 0xaaaacf905688 in operator new(unsigned long) (/root/ceph/build/bin/unittest_rgw_iam_policy+0x25f5688) (BuildId: c8dd019430a8d0162485760a78979347f29d225f)
    #1 0xffff7f0b7ca8 in ceph::common::CephContext::CephContext(unsigned int, ceph::common::CephContext::create_options const&) /root/ceph/src/common/ceph_context.cc:781:24
    #2 0xffff7f0b514c in ceph::common::CephContext::CephContext(unsigned int, code_environment_t, int) /root/ceph/src/common/ceph_context.cc:697:5
    #3 0xaaaacf997dcc in ManagedPolicyTest::ManagedPolicyTest() /root/ceph/src/test/rgw/test_rgw_iam_policy.cc:788:33
    #4 0xaaaacf997d08 in ManagedPolicyTest_IAMFullAccess_Test::ManagedPolicyTest_IAMFullAccess_Test() /root/ceph/src/test/rgw/test_rgw_iam_policy.cc:791:1
    #5 0xaaaacf997ca4 in testing::internal::TestFactoryImpl<ManagedPolicyTest_IAMFullAccess_Test>::CreateTest() /root/ceph/src/googletest/googletest/include/gtest/internal/gtest-internal.h:472:44
    #6 0xaaaacfb1a2d4 in testing::Test* testing::internal::HandleSehExceptionsInMethodIfSupported<testing::internal::TestFactoryBase, testing::Test*>(testing::internal::TestFactoryBase*, testing::Test* (testing::internal::TestFactoryBase::*)(), char const*) /root/ceph/src/googletest/googletest/src/gtest.cc:2605:10
    #7 0xaaaacfaced5c in testing::Test* testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::TestFactoryBase, testing::Test*>(testing::internal::TestFactoryBase*, testing::Test* (testing::internal::TestFactoryBase::*)(), char const*) /root/ceph/src/googletest/googletest/src/gtest.cc:2641:14
    #8 0xaaaacfa83274 in testing::TestInfo::Run() /root/ceph/src/googletest/googletest/src/gtest.cc:2848:22
    #9 0xaaaacfa84898 in testing::TestSuite::Run() /root/ceph/src/googletest/googletest/src/gtest.cc:3012:28
    #10 0xaaaacfaa065c in testing::internal::UnitTestImpl::RunAllTests() /root/ceph/src/googletest/googletest/src/gtest.cc:5723:44
    #11 0xaaaacfb23b9c in bool testing::internal::HandleSehExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) /root/ceph/src/googletest/googletest/src/gtest.cc:2605:10
    #12 0xaaaacfad4968 in bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) /root/ceph/src/googletest/googletest/src/gtest.cc:2641:14
    #13 0xaaaacfa9fad4 in testing::UnitTest::Run() /root/ceph/src/googletest/googletest/src/gtest.cc:5306:10
    #14 0xaaaacfa23588 in RUN_ALL_TESTS() /root/ceph/src/googletest/googletest/include/gtest/gtest.h:2486:46
    #15 0xaaaacfa23504 in main /root/ceph/src/googletest/googlemock/src/gmock_main.cc:70:10
    #16 0xffff7c5a73f8 in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16
    #17 0xffff7c5a74c8 in __libc_start_main csu/../csu/libc-start.c:392:3
    #18 0xaaaacf85756c in _start (/root/ceph/build/bin/unittest_rgw_iam_policy+0x254756c) (BuildId: c8dd019430a8d0162485760a78979347f29d225f)

SUMMARY: AddressSanitizer: 67625436 byte(s) leaked in 21960 allocation(s).
```

To avoid memory not free, use reset for not increasing RC and keep code uniformity as above codes.

Signed-off-by: Rongqi Sun <sunrongqi@huawei.com>

src/test/rgw/test_rgw_iam_policy.cc

@@ -785,7 +785,9 @@ class ManagedPolicyTest : public ::testing::Test {
 protected:
   intrusive_ptr<CephContext> cct;
 public:
-  ManagedPolicyTest() : cct(new CephContext(CEPH_ENTITY_TYPE_CLIENT)) {}
+  ManagedPolicyTest() {
+    cct.reset(new CephContext(CEPH_ENTITY_TYPE_CLIENT), false);
+  }
 };
 
 TEST_F(ManagedPolicyTest, IAMFullAccess)