win32: adb_test/libbase_test fixes

 - My recent change with -DUNICODE=1 required changing
   GetProfilesDirectory() to GetProfilesDirectoryA() for the ANSI version
   of the API.

 - enh's edit to my previous change deleted a test that used
   /proc/version, but I think another test was missed. Merge that test into
   another.

Change-Id: Ic748549848e7be922bcbf218d5b0c3fca2a90704
Signed-off-by: Spencer Low <CompareAndSwap@gmail.com>