A test for the crash when using multiple inheritance and calling a virtual function from a secondary base.

Signed-off-by: Dimitar Dobrev <dpldobrev@yahoo.com>

tests/CSharp/CSharp.Tests.cs

@@ -647,4 +647,17 @@ public unsafe class CSharpTests : GeneratorTestFixture
             return base.HasPointerToEnumInParam(pointerToEnum);
         }
     }
+
+    [Test]
+    public void TestStackOverflowOnVirtualCall()
+    {
+        using (var hasMissingObjectOnVirtualCall = new HasMissingObjectOnVirtualCall())
+        {
+            using (var missingObjectOnVirtualCall = new MissingObjectOnVirtualCall())
+            {
+                hasMissingObjectOnVirtualCall.SetMissingObjectOnVirtualCall(missingObjectOnVirtualCall);
+                hasMissingObjectOnVirtualCall.MakeMissingObjectOnVirtualCall();
+            }
+        }
+    }
 }

tests/CSharp/CSharp.cpp

@@ -1191,3 +1191,33 @@ void HasSecondaryBaseWithAbstractWithDefaultArg::abstract(const Foo& foo)
 void HasSecondaryBaseWithAbstractWithDefaultArg::abstractWithNoDefaultArg(const Foo& foo)
 {
 }
+
+MissingObjectOnVirtualCallSecondaryBase::MissingObjectOnVirtualCallSecondaryBase()
+{
+}
+
+void MissingObjectOnVirtualCallSecondaryBase::f()
+{
+}
+
+MissingObjectOnVirtualCall::MissingObjectOnVirtualCall()
+{
+}
+
+void MissingObjectOnVirtualCall::f()
+{
+}
+
+HasMissingObjectOnVirtualCall::HasMissingObjectOnVirtualCall()
+{
+}
+
+void HasMissingObjectOnVirtualCall::makeMissingObjectOnVirtualCall()
+{
+    stackOverflowOnVirtualCall->f();
+}
+
+void HasMissingObjectOnVirtualCall::setMissingObjectOnVirtualCall(MissingObjectOnVirtualCall* value)
+{
+    stackOverflowOnVirtualCall = value;
+}

tests/CSharp/CSharp.h

@@ -1067,3 +1067,27 @@ public:
     virtual void abstract(const Foo& foo = Foo());
     virtual void abstractWithNoDefaultArg(const Foo& foo = Foo());
 };
+
+class DLL_API MissingObjectOnVirtualCallSecondaryBase
+{
+public:
+    MissingObjectOnVirtualCallSecondaryBase();
+    virtual void f();
+};
+
+class DLL_API MissingObjectOnVirtualCall : public HasVirtualDtor1, public MissingObjectOnVirtualCallSecondaryBase
+{
+public:
+    MissingObjectOnVirtualCall();
+    void f();
+};
+
+class DLL_API HasMissingObjectOnVirtualCall
+{
+public:
+    HasMissingObjectOnVirtualCall();
+    void makeMissingObjectOnVirtualCall();
+    void setMissingObjectOnVirtualCall(MissingObjectOnVirtualCall* value);
+private:
+    MissingObjectOnVirtualCall* stackOverflowOnVirtualCall;
+};