C#: Example source code with structurally same expressions and statements.

csharp/ql/test/library-tests/structuralcomparison/StructuralComparison.cs

@@ -0,0 +1,54 @@
+using System;
+
+public class Class
+{
+    private readonly int x = 0;
+    private readonly int y = 1;
+
+    public int M0() => 0;
+    public int M1(int a) => a;
+    public int M2(int v1, int v2) => v1 + v2;
+
+
+    public void M3()
+    {
+        var z1 = x + y;
+        var z2 = x + y;
+    }
+
+    public void M4()
+    {
+        var z3 = M1(x);
+        var z4 = M1(x);
+        var z5 = M1(y);
+        var z6 = M0();
+        var z7 = M2(x, y) + M2(x, y);
+        M2(x, y);
+        M2(y, x);
+        M2(y, x);
+    }
+}
+
+public class BaseClass
+{
+    public int Field;
+    public object Prop { get; set; }
+}
+
+public class DerivedClass : BaseClass
+{
+    public void M4()
+    {
+        var x1 = base.Field;
+        var x2 = Field;
+        var x3 = this.Field;
+    }
+
+    public void M5()
+    {
+        var y1 = base.Prop;
+        var y2 = Prop;
+        var y3 = this.Prop;
+    }
+}
+