Fix bug where -u option with empty archive results in internal error.

gold/
        PR gold/20693
        * gold.cc (queue_middle_tasks): Force valid target earlier.

This change is backport of commit c13b08dbbcf752480a7621aa1f89bc5440c74c25
  - https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=c13b08dbbcf752480a7621aa1f89bc5440c74c25
to binutils 2.25.
1 file changed
tree: 571d12ff7043ff1a31a2646e8734cb03ad861db0
  1. binutils-2.25/