tests: qemuxml2argv: Add info->{in,out}file
tests: qemuxml2argv: Add info->{in,out}file

Track infile and outfile in testInfo. This is step towards moving path
creation out of the test case, which will eventually help sharing more
code with qemuxml2xmltest.c

Reviewed-by: Andrea Bolognani <3ada0bee826c753786fdbba72243dfba997094cf@redhat.com>
Signed-off-by: Cole Robinson <7cd45ff6ad1fb7cf556a02797d774247851499f8@redhat.com>

eskultety/libvirt,fabianfreyer/libvirt,nertpinx/libvirt,fabianfreyer/libvirt,crobinso/libvirt,zippy2/libvirt,fabianfreyer/libvirt,olafhering/libvirt,eskultety/libvirt,jfehlig/libvirt,eskultety/libvirt,fabianfreyer/libvirt,zippy2/libvirt,nertpinx/libvirt,libvirt/libvirt,libvirt/libvirt,jardasgit/libvirt,crobinso/libvirt,andreabolognani/libvirt,crobinso/libvirt,jfehlig/libvirt,nertpinx/libvirt,jfehlig/libvirt,jfehlig/libvirt,andreabolognani/libvirt,jardasgit/libvirt,zippy2/libvirt,olafhering/libvirt,libvirt/libvirt,crobinso/libvirt,jardasgit/libvirt,jardasgit/libvirt,andreabolognani/libvirt,fabianfreyer/libvirt,andreabolognani/libvirt,zippy2/libvirt,libvirt/libvirt,nertpinx/libvirt,olafhering/libvirt,eskultety/libvirt,jardasgit/libvirt,nertpinx/libvirt,eskultety/libvirt,andreabolognani/libvirt,olafhering/libvirt