Stack traces for Memcheck's syscall param errors are terribly unreliable, so
I changed it to just filter the entire stack trace out for these errors (both
normal and XML cases).  The syscall name is still present in the error
string.  This allows a one or more alternative expected output files to be
removed for several tests, which is A Very Good Thing.

Also, I killed filter_test_paths because it was weird and clumsy and the
above change obviated most of its use and the remaining effects could be
achieved in other ways.

Also, I fixed up the scalar* tests a little and they now pass on my machine,
(and hopefully at least some other machines) for the first time ever!


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@9178 a5019735-40e9-0310-863c-91ae7b9d1cf9
42 files changed