use sys_open in sys_trytoopenone for Windows ucs2 filenames in abstractions

8 jobs for more-windows-path-fixes in 359 minutes and 18 seconds (queued for 128 minutes and 18 seconds)
latest
Status Job ID Name Coverage
  Test
passed #13418
x86_64 stretch debian
debian_stretch_x86_64_deb

00:35:41

passed #13422
dmg v10.11 osx
osx_10.11_x86_64_dmg

00:17:42

passed #13423
dmg v10.8 osx
osx_10.8_x86_64_dmg

00:17:27

passed #13425
stretch arm raspbian
raspbian_stretch_armv7l_deb

01:08:01

passed #13419
i386 v14.04 ubuntu
ubuntu_14.04_i386_deb

00:34:21

passed #13420
x86_64 v14.04 ubuntu
ubuntu_14.04_x86_64_deb

00:32:10

passed #13421
x86_64 v16.04 ubuntu
ubuntu_16.04_x86_64_deb

00:47:10

passed #13424
i386 windows
windows_i386_innosetup

01:46:42