RFR - JDK-8212975 ClassDesc should have a full name method

[Jim Laskey]

Revision based on Joe review

webrev: http://cr.openjdk.java.net/~jlaskey/8212975/webrev-03

> On Apr 22, 2019, at 3:34 PM, Jim Laskey <james.laskey at oracle.com> wrote:
> 
> ClassDesc.displayName(boolean detail) allows the user the option to fetch the fully qualified class name.
> 
> webrev: http://cr.openjdk.java.net/~jlaskey/8212975/webrev-02 <http://cr.openjdk.java.net/~jlaskey/8212975/webrev-02>
> JBS: https://bugs.openjdk.java.net/browse/JDK-8212975 <https://bugs.openjdk.java.net/browse/JDK-8212975>
> 
> Thank you.
> 
> Cheers,
> 
> - Jim
>