update test

Author: mrigankpawagi

cpp/ql/test/query-tests/Critical/GlobalUseBeforeInit/GlobalUseBeforeInit.expected

@@ -1 +1,2 @@
 | test.cpp:27:5:27:6 | f1 | The variable $@ is used in this function but may not be initialized when it is called. | test.cpp:14:5:14:5 | b | b |
+| test.cpp:38:5:38:8 | main | The variable $@ is used in this function but may not be initialized when it is called. | test.cpp:14:5:14:5 | b | b |

cpp/ql/test/query-tests/Critical/GlobalUseBeforeInit/test.cpp

@@ -31,8 +31,14 @@ int f1()
     return 0;
 }
 
+void f2() {
+    my_printf("%d\n", b); // GOOD
+}
+
 int main()
 {
-    int b = f1();
+    my_printf("%d\n", b); // BAD
+    b = f1();
+    f2();
     return 0;
 }