qmgr/tests: make sure return values are used (LLVM/Clang)

[Austin English]

-- 
-Austin
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diff --git a/dlls/qmgr/tests/qmgr.c b/dlls/qmgr/tests/qmgr.c
index 6dc9c1c..092d009 100644
--- a/dlls/qmgr/tests/qmgr.c
+++ b/dlls/qmgr/tests/qmgr.c
@@ -208,6 +208,7 @@ static void test_globalness(void)
         BOOL found = FALSE;
 
         hres = IEnumBackgroundCopyJobs_GetCount(enumJobs, &n);
+        ok(hres == S_OK, "GetCount failed: %08x\n", hres);
         for (i = 0; i < n && !found; ++i)
         {
             LPWSTR name;
@@ -219,6 +220,7 @@ static void test_globalness(void)
             IBackgroundCopyJob_Release(job);
         }
         hres = IEnumBackgroundCopyJobs_Release(enumJobs);
+        ok(hres == S_OK, "Release failed: %08x\n", hres);
         ok(found, "Adding a job in another process failed\n");
     }