Improved Garbage Collection performance

[Tom Tromey]

>>>>> "John" == John Neil <jneil@atrove.com> writes:

John> The first modification was to only scan the initialized class
John> rather than the entire .data section.

Yeah, we need to do this.  This is yet another piece of the "new
ABI"... not only will we move to binary compatibility, but we'll use
the opportunity to fix things like this.

I filed PR 13130 to track this.

John> Whilst on GC, I was wondering what is the difference between
John> _Jv_Malloc and JV_MallocUnchecked.

It is just whether null return checking is done.

Tom