When I generate top level classes with `FirDeclarationGenerationExtension` they go into `__GENERATED...

# compiler

[Tóth István Zoltán]

When I generate top level classes with FirDeclarationGenerationExtension they go into __GENERATED DECLARATIONS__.kt by default. Is it possible to put them into the original file? I move expressions from the original functions into these classes and the offsets are wrong because the generated classes are in a different file.