[Bug 36322] valgrind shows a leak in rpcrpc4/tests/cstub.c

https://bugs.winehq.org/show_bug.cgi?id=36322

--- Comment #1 from Austin English  ---
There's also:
==27424== 24 bytes in 1 blocks are definitely lost in loss record 161 of 601
==27424==    at 0x7BC50A9B: RtlAllocateHeap (heap.c:255)
==27424==    by 0x5B86F50: CStdStubBuffer_Construct (cstub.c:88)
==27424==    by 0x5B85020: CStdPSFactory_CreateStub (cpsf.c:135)
==27424==    by 0x4D68F97: create_stub (objidl.h:9251)
==27424==    by 0x4D6B330: func_cstub (cstub.c:867)
==27424==    by 0x4D9AC78: run_test (test.h:584)
==27424==    by 0x4D9B067: main (test.h:654)
==27424==

==27424== 24 bytes in 1 blocks are definitely lost in loss record 162 of 601
==27424==    at 0x7BC50A9B: RtlAllocateHeap (heap.c:255)
==27424==    by 0x5B86F50: CStdStubBuffer_Construct (cstub.c:88)
==27424==    by 0x5B85020: CStdPSFactory_CreateStub (cpsf.c:135)
==27424==    by 0x5BA0DC0: create_stub (objidl.h:9251)
==27424==    by 0x5B87438: CStdStubBuffer_Delegating_Construct (cstub.c:346)
==27424==    by 0x5B84FDC: CStdPSFactory_CreateStub (cpsf.c:131)
==27424==    by 0x4D68F97: create_stub (objidl.h:9251)
==27424==    by 0x4D6B4E3: func_cstub (cstub.c:896)
==27424==    by 0x4D9AC78: run_test (test.h:584)
==27424==    by 0x4D9B067: main (test.h:654)

==27424== 28 bytes in 1 blocks are possibly lost in loss record 172 of 601
==27424==    at 0x7BC50A9B: RtlAllocateHeap (heap.c:255)
==27424==    by 0x4F06BB8: apartment_getclassobject (compobj.c:526)
==27424==    by 0x4F09FC6: get_inproc_class_object (compobj.c:2894)
==27424==    by 0x4F0CD2F: CoGetClassObject (compobj.c:3032)
==27424==    by 0x5BA0CC7: create_proxy (ndr_ole.c:391)
==27424==    by 0x5B83D1D: StdProxy_Construct (cproxy.c:276)
==27424==    by 0x5B84E37: CStdPSFactory_CreateProxy (cpsf.c:114)
==27424==    by 0x4D68CB7: create_proxy_test (objidl.h:9248)
==27424==    by 0x4D6B140: func_cstub (cstub.c:761)
==27424==    by 0x4D9AC78: run_test (test.h:584)
==27424==    by 0x4D9B067: main (test.h:654)
==27424==