RFR: JDK-8287094: IGV: show node input numbers in edge tooltips [v4]

[Tobias Hartmann]

On Mon, 27 Jun 2022 08:59:18 GMT, Tobias Holenstein <tholenstein at openjdk.org> wrote:

>> For nodes with many inputs, such as safepoints, it is difficult and error-prone to figure out the exact input number of a given incoming edge. 
>> 
>> Extend the Edge Tooltips to include the input number of the destination node:
>> **Before** `91 Addl -> 92 SafePoint`
>> **Now** `91 Addl -> 92 SafePoint [NR]`
>> ![edge](https://urldefense.com/v3/__https://user-images.githubusercontent.com/71546117/175506945-6f5137d2-7647-4acb-a135-8fcb719df3e6.png__;!!ACWV5N9M2RV99hQ!K5UUB-s-84-f9ehSsWQj8BKtw--wxBp4fYVS1O1-ZG1SSLZvEnhdKBXfoWZalzwQ7rHVxoK40qov4M7ljduU4EQp7_Vf-ytyVA$ )
>
> Tobias Holenstein has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Update src/utils/IdealGraphVisualizer/Graph/src/main/java/com/sun/hotspot/igv/graph/FigureConnection.java
>   
>   String concatenation
>   
>   Co-authored-by: Christian Hagedorn <christian.hagedorn at oracle.com>

Looks good.

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Marked as reviewed by thartmann (Reviewer).

PR: https://git.openjdk.org/jdk/pull/9273