C++/Java: Don't use type size in object allocation

[Per Bothner]

Bryce McKinlay wrote:

> Currently, calls to the Java object allocation routines (eg 
> _Jv_AllocObject) pass both a class parameter and a size parameter. Hard 
> coding the size parameter at the call site contradicts binary 
> compatibility, since the size of the object being created may change at 
> runtime. Even without binary compatibility, passing the size parameter 
> is redundant because the size of the type can be trivially obtained from 
> class metadata.

I think the reason was so _Jv_AllocObject could also be used to allocate
arrays.  As long as arrays no longer use _Jv_AllocObject, it's fine to
remove the size perhaps.
-- 
	--Per Bothner
per@bothner.com   http://per.bothner.com/