RFR: 8177953: Rename TestGCBasher.run to TestGCBasher.main

[Erik Helin]

Hi all,

when I added the GCBasher test I named then main method 'run' instead of 
'main'. This small patch corrects that mistake.

Bug:
https://bugs.openjdk.java.net/browse/JDK-8177953

Patch:
http://cr.openjdk.java.net/~ehelin/8177953/00/

Testing:
- make run-test TEST=hotspot/test/gc/stress/gcbasher

Thanks,
Erik