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

[Kumar Srinivasan]

Hi Alex,

The class can be compiled into the current directory (scratch), this 
will  eliminate:
a. the deletion of the files and allow jtreg to clean out the scratch 
directory
b. uses of  TEST_CLASSES_DIR.getAbsolutePath().

Thanks
Kumar



> 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