RFR: 8146690: Make all classes in GC follow the naming convention.

[David Lindholm]

Hi,

My latest cleanup effort has been to make sure that all class names in 
GC follow the CamelCase naming convention. Almost all classes does this 
already, but there are a few that doesn't. For a list of these classes, 
see https://bugs.openjdk.java.net/browse/JDK-8146690

Please review this patch that renames these classes to follow the naming 
convention.

I have not changed names of the gc vm operations, since all vm 
operations throughout hotspot follow the same naming convention 
(VM_Operation).

Bug: https://bugs.openjdk.java.net/browse/JDK-8146690
Webrev: http://cr.openjdk.java.net/~david/JDK-8146690/webrev.00/

Testing: JPRT.


Thanks,
David L