RFR: JDK-8000970: Break out auxiliary classes that will prevent multi-core compilation of the JDK.

[Fredrik Öhrström]

The new (soon to be pushed) lint flag -Xlint:auxiliaryclass warns for a certain number of locations on the OpenJDK where it is impossible to find the correct
source when using implicit compilation. Implicit compilation is primarily used in the multi core support in the sjavac tool used in the new 
build system, but it does not hurt cleaning up these locations anyway.

The change does not modify the source except by moving out auxiliary classes to their own source files. The copyrights to the original source
is retained since there is no actual source change, only a source move.

http://cr.openjdk.java.net/~ohrstrom/webrev-JDK-8000970-v1/
http://cr.openjdk.java.net/~ohrstrom/webrev-JDK-8000970-corba-v1/

//Fredrik