[Mono-list] debugging support

[Dietmar Maurer]

I just added a check for unhandled exceptions to exception.c. I thougth
its a good idea to write debugging informations before calling
G_BREAKPOINT:

	if (!arch_exc_is_catched (domain, jit_tls, ip, (gpointer *)ctx->SC_EBP, obj)) {
		if (mono_debug_format != MONO_DEBUG_FORMAT_NONE) {
			mono_debug_make_symbols ();
			G_BREAKPOINT ();
		}
		mono_unhandled_exception (obj);
	}

Or is this a bad idea? 

But it seems that debugging support is broken, at least I get no useful
infos after loading the symbols.

- Dietmar