New: Added for-loop-iteration hint

[ruppysuppy]

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Short description of the change(s)

Added for..in and for..of loop hint in case of improper use

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Fixes: #4018

[ruppysuppy]

I haven't started working on the hint functionality as of yet (added the readme and other nits). How do I extract the information from the AST?

[antross]

Hey @ruppysuppy sorry for the slow response. Taking a look at this I don't see the AST information available either.

I think we may need to do some more work in our parser-typescript to attach this information to the AST. In that case we may want to put this on hold for the moment and I'll let you know once we have the AST information available (unless you want to see what you can figure out with the TypeScript parser in the meantime).

[ruppysuppy]

I will wait till the data is attached to the AST. Please leave a comment in this PR, I will continue from there