C++: Add regression test.

Author: MathiasVP

cpp/ql/test/library-tests/dataflow/dataflow-tests/test.cpp

@@ -788,4 +788,12 @@ void test_sometimes_calls_sink_switch() {
   sometimes_calls_sink_switch(source(), 1);
   sometimes_calls_sink_switch(0, 0);
   sometimes_calls_sink_switch(source(), 0);
+}
+
+void intPointerSource(int *ref_source, const int* another_arg);
+
+void test() {
+  MyStruct a;
+  intPointerSource(a.content, a.content);
+  indirect_sink(a.content); // $ ast MISSING: ir
 }

cpp/ql/test/library-tests/dataflow/dataflow-tests/uninitialized.expected

@@ -46,3 +46,6 @@
 | test.cpp:595:8:595:9 | xs | test.cpp:597:9:597:10 | xs |
 | test.cpp:733:7:733:7 | x | test.cpp:734:41:734:41 | x |
 | test.cpp:733:7:733:7 | x | test.cpp:735:8:735:8 | x |
+| test.cpp:796:12:796:12 | a | test.cpp:797:20:797:20 | a |
+| test.cpp:796:12:796:12 | a | test.cpp:797:31:797:31 | a |
+| test.cpp:796:12:796:12 | a | test.cpp:798:17:798:17 | a |