* gdb.base/annota1.exp: Make sure that we properly escape the
full path of the source file. Xfail more permissive patterns,
due to a compiler debug info problem.
path optional since not all compilers emit this debug information.
* gdb.base/shlib-call.exp (step inside shr2): Don't fail if first
step ends up stepping out of the function instead of stopping on
the epilogue.
file -- to prevent failing when the compile fails but we have no
intention of running the tests anyway.
* gdb.base/long_long.exp: Test target_info for no_long_long, skip
tests if set.
* gdb.base/maint.exp: Support 2 byte integers as well as 4 byte
integers.
* gdb.c++/ctti.exp: Skip tests if skip_cplus_tests returns true.
* gdb.c++/namespace.exp: Ditto.
Fix PR gdb/16.
* gdb.base/annota1.exp (run until main breakpoint): Loosen up
the regular expression: accept an (almost) arbitrary sequence of
"frames-invalid" and "breakpoints-invalid" messages both before
and after the "starting" message.
