[PATCH 4/9] mshtml: Use builtin hooks even when calling function dispatch objects.

[Gabriel Ivăncescu]

Thinking about this overnight, there's only one other idea I could come 
up with to forward it properly: have the hook modify the DISPPARAMS 
in-place as required, and either return a special value to indicate 
this, or return S_FALSE and we check if they were modified (to free them 
after the call).

I'm not sure how much of a hack this is, though. It sounds a bit ugly to 
me, but it avoids passing a func_info_t, so if it's what it takes...

BTW how about the jscript patches? They're technically not dependent on 
these ones, and those are the ones I mainly would like before code 
freeze since they have huge changes (and implications for proxies), 
please don't let this hook thing stay in the way of them getting 
reviewed or upstreamed.