QL code and tests for C#/C++/JavaScript.

csharp/ql/test/query-tests/API Abuse/InconsistentEqualsGetHashCode/InconsistentEqualsGetHashCode.cs

@@ -0,0 +1,41 @@
+using System;
+
+class ClassMissingGetHashCode
+{
+    public override bool Equals(object other)
+    {
+        return false;
+    }
+
+    public new int GetHashCode()
+    { // not overridden
+        return 42;
+    }
+}
+
+
+class ClassMissingEquals
+{
+    public new bool Equals(object other)
+    { // not overridden
+        return false;
+    }
+
+    public override int GetHashCode()
+    {
+        return 42;
+    }
+}
+
+class Class
+{
+    public override bool Equals(object other)
+    {
+        return false;
+    }
+
+    public override int GetHashCode()
+    {
+        return 42;
+    }
+}