RFR(XS): 8187884: [TESTBUG] compiler/classUnloading/anonymousClass/TestAnonymousClassUnloading failed with ClassNotFoundException

[Calvin Cheung]

This test failure started showing up after repo consolidation when 
running via JPRT -testset hotspot.
The problem went away if I change the file header similar to 
classUnloading/methodUnloading/TestMethodUnloading.java.

bug: https://bugs.openjdk.java.net/browse/JDK-8187884

webrev: http://cr.openjdk.java.net/~ccheung/8187884/webrev.00/

It passed JPRT -testset hotspot.

thanks,
Calvin