Fix system() redirect parse: do not treat 2>&1 as >&
tests: fix macros and tripple_string tetsts on Windows
tests: fix ilib using a path that works on Windows
ci: enable failure on Windows test
runtime: fix mswinsystem redirection when SystemRoot is set
tests(posix): Windows-oriented fixes and .wstd goldens
runtime: fix fcntl and getpw tests on Windows
tests: fix a couple of posix tests on freebsd