gas: elf/bad-group testcase

[Jan Beulich]

Hello,

I'm trying to understand what this testcase is actually testing.
Originally it was looking for just _some_ error. In commit
85024cd8bcb9 it was changed to expect an error on line 10. But
line 10 is a .uleb128, where the difference of symbols between
two sections cannot be resolved. How's that group related? Was it
perhaps some other error which was originally meant to be raised,
but which has meanwhile disappeared (on x86 at least the one
error mentioned above is the only one).

For context: A pending change of mine broke this testcase for two
targets, and understanding the goal of the testcase would
certainly help me figure out the breakage.

Thanks, Jan