RFR 8025076: Fix for JDK-8017248 breaks jprt submission for non-unicode locales

[Alexander Zuev]

Hi,

   please review my fix for 8025076: Fix for JDK-8017248 breaks jprt 
submission for non-unicode locales

   The idea of the fix is to replace test case with the complex file 
name in it by the
test that generates and compiles such file at the run time.

   The webrev can be found at: 
http://cr.openjdk.java.net/~kizune/8025076/webrev.04/

With best regards,
/Alex