[9] RFR(XS): 8073956: Escape analysis dump misses args information

[Tobias Hartmann]

Hi,

please review this small patch that fixes the output of 

https://bugs.openjdk.java.net/browse/JDK-8073956
http://cr.openjdk.java.net/~thartmann/8073956/webrev.00/

The problem is in 'BCEscapeAnalyzer::dump()' where 'AllocatedObj::print_on()' is called instead of 'Set::print()'.

Thanks,
Tobias