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kotlinlang

After enabling `-XXexplicit-return-types=warning` I'm getting
```e: … The feature "unnamed local variables" is experimental and should be enabled explicitly. This can be done by supplying the compiler argument '-XXLanguage:+UnnamedLocalVariables', but note that no stability guarantees are provided.```
The code compiled fine previously. The version of Kotlin has not changed. Is this expected?

I'm confused, this flag has nothing about unnamed local variables.
On which code and in which configuration it happens?

Nevermind I found the problem, `freeCompilerArgs = listOf("-XXexplicit-return-types=warning")` deletes the `-Xreturn-value-checker=full` that another convention plugin was adding:man-facepalming: