[PATCH 0/2] [testsuite] PR80759 Fix test breakages on i386-pc-solaris2.*

[Daniel Santos <daniel.santos@pobox.com>]

There are a few issues with my ms-sysv.exp tests:

 1. Use of gas extensions in do_test.S cause breakages on Solaris,
 2. Parallelization breaks when no make -j<jobs> flag is passed,
 3. Builds aren't adding TEST_ALWAYS_FLAGS, so log files filled with
    color escape codes, and
 4. The "test unsupported" message is being spammed once for each -j<job>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80759

I've broken this apart into two patches because I don't know if you'll 
agree with the first one.  I fixed the make -j<n> issue and moved the 
parallelization code into a new gcc/target/lib/parallelize.exp in the 
first patch and fixed all of the other issues in the second.  I've 
removed all usage of gas .struct in my assembly file, used hard-coded 
the offsets into the code and added asserts to main.c to make sure they 
don't change.

I've bootstrapped and retested on x86_64 Linux and have asked Rainer to 
retest on Solaris.  Presuming that succeeds, are you OK with this 
change?  (I have SVN write privs now, so I can even commit it myself).

Thanks,
Daniel