CPP: Create a direct test of Variable.getAnAssignedValue().

Author: geoffw0

cpp/ql/test/library-tests/variables/getanassignedvalue/getanassignedvalue.expected

@@ -0,0 +1,10 @@
+| test.cpp:4:9:4:11 | 10 | test.cpp:4:6:4:6 | v |
+| test.cpp:5:15:5:16 | & ... | test.cpp:5:7:5:11 | ptr_v |
+| test.cpp:6:15:6:15 | v | test.cpp:6:7:6:11 | ref_v |
+| test.cpp:8:6:8:7 | 11 | test.cpp:4:6:4:6 | v |
+| test.cpp:10:10:10:11 | 13 | test.cpp:6:7:6:11 | ref_v |
+| test.cpp:11:6:11:10 | ... + ... | test.cpp:4:6:4:6 | v |
+| test.cpp:19:32:19:35 | 0.0 | test.cpp:19:27:19:28 | _y |
+| test.cpp:19:42:19:43 | _x | test.cpp:24:8:24:8 | x |
+| test.cpp:19:49:19:50 | _y | test.cpp:24:11:24:11 | y |
+| test.cpp:19:54:19:60 | 0.0 | test.cpp:24:14:24:14 | z |

cpp/ql/test/library-tests/variables/getanassignedvalue/getanassignedvalue.ql

@@ -0,0 +1,4 @@
+import cpp
+
+from Variable v
+select v.getAnAssignedValue(), v

cpp/ql/test/library-tests/variables/getanassignedvalue/test.cpp

@@ -0,0 +1,25 @@
+
+void test1()
+{
+	int v = 10; // assignment to `v`
+	int *ptr_v = &v; // assignment to `ptr_v`
+	int &ref_v = v; // assignment to `ref_v`
+
+	v = 11; // assignment to `v`
+	*ptr_v = 12;
+	ref_v = 13; // assignment to `ref_v`
+	v = v + 1; // assignment to `v`
+	v += 1;
+	v++;
+}
+
+class myClass1
+{
+public:
+	myClass1(float _x, float _y = 0.0f) : x(_x), y(_y), z(0.0f) { // assignments to `_y`, `x`, `y`, `z`
+		// ...
+	}
+
+private:
+	float x, y, z;
+};