Before You File a Bug Report Please Confirm You Have Done The Following...

• I have tried restarting my IDE and the issue persists.
• I have updated to the latest version of the packages.
• I havesearched for related issues and found none that matched my issue.
• I haveread the FAQ and my problem is not listed.

Playground Link

https://typescript-eslint.io/play/#ts=5.6.2&fileType=.ts&code=IYZwngdgxgBAZgV2gFwJYHsIwO4CdgAOBAprgDwAqAfABQBuwANgsQFwwUCUMA3gFAwYuYsgS4swbMFTIYDZsQDcfAL5A&eslintrc=N4KABGBEBOCuA2BTAzpAXGUEKQAIBcBPABxQGNoBLY-AWhXkoDt8B6AQwHd3K78ALRE3YAjJOiiJo0APbRI4MAF8QSoA&tsconfig=N4KABGBEDGD2C2AHAlgGwKYCcDyiAuysAdgM6QBcYoEEkJemy0eAcgK6qoDCAFutAGsylBm3TgwAXxCSgA&tokens=false

Repro Code

asyncfunctionwrapper<T>(value:T){returnawaitvalue;}

ESLint Config

module.exports={"rules":{"@typescript-eslint/await-thenable":"error"}}

tsconfig

{"compilerOptions": {"strictNullChecks":true  }}

Expected Result

Theawait value shouldn't be reported on. We don't know thatT is or isn't a Promise/Thenable. I'd like to be able to use theawait just in case it is.

Actual Result

On theawait value:

Unexpected `await` of a non-Promise (non-"Thenable") value.

Additional Info

For a slightly more realistic reproduction, consider a function thatawaits the result of calling a function for a generic value:

typeGetSomething<T>=(timestamp:number)=>T;asyncfunctionwrapper<T>(getter:GetSomething<T>){consttimestamp=performance.now();// I'd like to await in here to preserve the call stackreturnawaitgetter(timestamp);}

Somewhat related:#8301, where it was noted that the rule intentionally ignoresany andunknown values because there's no guarantee they aren't a Promise.

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