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• I havesearched for related issues and found none that match my proposal.
• I have searched thecurrent rule list and found no rules that match my proposal.
• I haveread the FAQ and my problem is not listed.

Relevant Package

scope-manager

My proposal is suitable for this project

• I believe my proposal would be useful to the broader TypeScript community (meaning it is not a niche proposal).

Description

While working on#1991, we discovered that there's no way currently to detect if a method signature usesthis. The reason is that this:

interfaceX{foo(): this;}

Is not transformable to this:

interfaceX{foo:()=> this;}

While I don't exactly understand the assignability differences and whatthis means in each case, my understanding is we want to look for method signatures that referencethis, butthis has to refer to the type bound by the method, so we still keep the autofix for:

interfaceX{foo():(this:Y)=> this;}

Therefore, the best way is to track this in the scope manager, similar to how we automatically injectarguments forFunctionScope. In fact, for the code above, we already trackthis as a normal variable.

Additional Info

No response