shell32: Stop crash when an error occurs.

dlls/shell32/tests/shlfolder.c

@@ -450,6 +450,8 @@ static void test_GetDisplayName(void)
         /* The pidl returned through the last parameter of SetNameOf is a simple one. */
         hr = IShellFolder_SetNameOf(psfPersonal, NULL, pidlLast, wszDirName, SHGDN_NORMAL, &pidlNew);
         ok (SUCCEEDED(hr), "SetNameOf failed! hr = %08x\n", hr);
+        if(hr == S_OK)
+        {
             ok (((LPITEMIDLIST)((LPBYTE)pidlNew+pidlNew->mkid.cb))->mkid.cb == 0,
                 "pidl returned from SetNameOf should be simple!\n");
 
@@ -465,6 +467,8 @@ static void test_GetDisplayName(void)
             ok (SUCCEEDED(hr), "SetNameOf failed! hr = %08x\n", hr);
 
             pILFree(pidlNew);
+        }
+
         IShellFolder_Release(psfPersonal);
     }