C++: Accept query test changes.

Author: MathiasVP

cpp/ql/test/query-tests/Security/CWE/CWE-416/semmle/tests/IteratorToExpiredContainer/IteratorToExpiredContainer.expected

@@ -3,4 +3,3 @@
 | test.cpp:702:27:702:27 | call to operator[] | This object is destroyed at the end of the full-expression. |
 | test.cpp:727:23:727:23 | call to operator[] | This object is destroyed at the end of the full-expression. |
 | test.cpp:735:23:735:23 | call to operator[] | This object is destroyed at the end of the full-expression. |
-| test.cpp:826:25:826:43 | pointer to ~HasBeginAndEnd output argument | This object is destroyed at the end of the full-expression. |

cpp/ql/test/query-tests/Security/CWE/CWE-416/semmle/tests/IteratorToExpiredContainer/test.cpp

@@ -823,7 +823,7 @@ void test6()
 {
   while(getBool())
   {
-    for (const int& x : getHasBeginAndEnd()) // GOOD [FALSE POSITIVE]
+    for (const int& x : getHasBeginAndEnd()) // GOOD
     {
     }
   }