Report trailing comma after last array element

This feature proposal refers to the issue i submitted to vscode-cfml. Since the issue my proposal addresses is engine-specific, it is rather an improvement for CFLint than for the CFML plugin.

In CFScript, the last element of an array isn’t allowed to have a trailing comma. Trailing commas after the last element are considered as a syntax error in Adobe ColdFusion.

coffee = [ "Cappuccino", "Espresso", "Latte macchiato", ];

This code will result in an error (except for Lucee/Railo). Would it be great effort to highlight/underline the closing bracket in order to indicate that the trailing comma is not valid?

[KamasamaK]

I propose that the rule(s) be configurable with values always and never.

[dominikbraun]

What’s the current state of this issue? 😄