[gold commit] PR 22309: Fix incremental test failure with GCC 7+

[Cary Coutant]

> 2017-12-01  Cary Coutant  <ccoutant@gmail.com>
>
> gold/
>         PR gold/22309
>         * testsuite/Makefile.am (two_file_test_1_v1_ndebug.o): Compile with
>         no EH information.
>         (two_file_test_1_ndebug.o): Likewise.
>         * testsuite/Makefile.in: Regenerate.
>         * testsuite/two_file_test_1.cc: Touch to force recompilation with new
>         flags.
>         * testsuite/two_file_test_1_v1.cc: Likewise.

Backported to 2.29.

-cary