[PATCH] Speed up bfd_dwarf2_find_nearest_line for very big binaries.

[Nick Clifton]

Hi Doug,

>     I have implemented an arange set based on the splay tree in
> libiberty.  The arange set replaces some uses of the singly linked
> list of aranges in dwarf2.c, which is extremely inefficient for big
> binaries.

Thanks for submitting this patch.  Please accept my apologies for taking so 
long to getting round to reviewing it.

The patch is fine, and I have checked it in.  I did leave out the testsuite 
however as I felt that it was not really necessary.

Cheers
   Nick