Use GenerateInternalFunctionCall when generating class constructors.

Fixes #149.

src/Generator/Generators/CSharp/CSharpTextTemplate.cs

@@ -1933,20 +1933,11 @@ namespace CppSharp.Generators.CSharp
 
         private void GenerateClassConstructor(Method method, Class @class)
         {
-            var @params = GenerateFunctionParamsMarshal(method.Parameters, method);
-
             WriteLine("{0} = Marshal.AllocHGlobal({1});", Helpers.InstanceIdentifier,
                 @class.Layout.Size);
 
             if (!method.IsDefaultConstructor || @class.HasNonTrivialDefaultConstructor)
-            {
-                Write("Internal.{0}({1}", GetFunctionNativeIdentifier(method),
-                      Helpers.InstanceIdentifier);
-                if (@params.Any())
-                    Write(", ");
-                GenerateFunctionParams(@params);
-                WriteLine(");");
-            }
+                GenerateInternalFunctionCall(method);
 
             GenerateVTableClassSetupCall(@class);
         }
@@ -2182,12 +2173,6 @@ namespace CppSharp.Generators.CSharp
             public CSharpMarshalContext Context;
         }
 
-        public void GenerateFunctionParams(List<ParamMarshal> @params)
-        {
-            var names = @params.Select(param => param.Name).ToList();
-            Write(string.Join(", ", names));
-        }
-
         public List<ParamMarshal> GenerateFunctionParamsMarshal(IEnumerable<Parameter> @params,
                                                                 Function function = null)
         {

tests/Basic/Basic.h

@@ -47,6 +47,8 @@ struct DLL_API Bar
     Bar* returnPointerToValueType();
 };
 
+DLL_API Bar::Item operator |(Bar::Item left, Bar::Item right);
+
 struct DLL_API Bar2 : public Bar
 {
     // Conversion operators
@@ -234,4 +236,11 @@ struct DLL_API TestDelegates
     DelegateInGlobalNamespace B;
 };
 
-DLL_API Bar::Item operator |(Bar::Item left, Bar::Item right);
+// Tests memory leaks in constructors
+//  C#:  Marshal.FreeHGlobal(arg0);
+struct DLL_API TestMemoryLeaks
+{
+    TestMemoryLeaks(const char* name) {}
+};
+
+