shouldfail'ing sourcelocation

[Dominique Dhumieres]

> Note you don't need dwarf4 to make sourcelocation work (comment in the
> test case is a bit misleading). You just need some way to read the
> source line number info, whatever format it is in.

The sourcelocation failures are tracked by pr55637 which was opened almost
four months ago (2012-12-10). If some java maintainer knows how to fix it,
why this test is still failing on all the platforms I have looked at?

Dominique