RFR: JDK-8290011: IGV: Remove dead code and cleanup [v10]

[Tobias Holenstein]

On Thu, 8 Sep 2022 07:44:11 GMT, Christian Hagedorn <chagedorn at openjdk.org> wrote:

>> Tobias Holenstein has updated the pull request incrementally with two additional commits since the last revision:
>> 
>>  - Undo removal of toString() in Group.java
>>  - make fond constants uppercase
>
> src/utils/IdealGraphVisualizer/Data/src/main/java/com/sun/hotspot/igv/data/Group.java line 102:
> 
>> 100: 
>> 101:     @Override
>> 102:     public String toString() {
> 
> You might want to keep this method for debugging purposes?

I readded it

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PR: https://git.openjdk.org/jdk/pull/10197