* mips_pro.exp: Accept either "middle -> top -> main" or
"middle -> main" in the backtrace, because gcc can optimize
tail calls to jumps. Remove setup_xfail for the hppa case.
Add a comment with the original warning messages from PR 3016,
which was filed in 1993, to preserve them for posterity.
"p func1 ()" and note that rests of tests are skipped.
* gdb.base/corefile.exp: Add i*86-*-linux* and m68*-*-hpux*
setup_xfails for "print func2::coremaker_local".
Add i*86-*-linux* setup_xfail for "backtrace in corefile.exp".
* gdb.base/mips_pro.exp: Restart gdb in this test so it isn't
affected by the previous run test.
* gdb.chill/misc.exp: Add m68*-*-hpux* setup_xfails for
"print array () ubyte (foo)" and "print/x array () byte (\$i)"
* gdb.chill/pr-8742.exp: Add m68*-*-hpux* setup_xfails for
"pass int powerset tuple" and "pass modeless int powerset tuple".
* gdb.chill/tests2.exp: Add m68*-*-hpux* setup xfails for
"real write 4" and "real write 8".
* gdb.shill/tuples.exp: Add i*86-*-linux* and m68*-*-hpux*
setup_xfails for "print vs1 after tuple assign 2",
"print \$i after tuple assign 2", and
"print vs2 after tuple assign 2".
* lib/gdb.exp (gdb_test): When a gdb aborts, print a more
meaningful error message and return -1 so the caller can
suppress further tests and avoid a cascade of errors.
