Number of bfd_count_sections changes during bfd_simple_get_relocated_section_contents

[Tom de Vries]

Hi,

with gdb we've run into this PR ( 
https://sourceware.org/bugzilla/show_bug.cgi?id=29295 ) which is due to:
- gdb expecting bfd_count_sections to remain constant, and
- bfd changing the bfd_count_sections from 6 to 7, due to the
  creation of a COMMON section during
  bfd_simple_get_relocated_section_contents
The question is: is this expected behaviour for bfd, or is this in fact 
a bfd bug that needs fixing?

Thanks,
- Tom