Crash instead of compile error

Hi Andreas, I've been following the WIP version and enjoying using AngelScript so far. Thanks for the great work.

There's something I found today which might be a bug, fortunately it is easy to reproduce. The following code is crashing the compiler instead of returning an error message:

class Foo
{
	Foo(int a)
	{
	}
}

class Bar : Foo
{
	void func()
	{
	}
}