Idea: Add a check for functions that don't need to be annotated with @Composable but are.

[yogurtearl]

Some functions don't need to be @Composable but are.

Maybe the function originally used some other @Composable thing but it was removed at some point, would be nice to have a lint check that reported "@Composable can be removed from function foo()"

[ZacSweers]

Hmm, would a simple example of that be something like

@Composable fun example() = println("derp")

?

[yogurtearl]

Yes. :)

That would trigger the issue to say "@Composable is not needed for this function/property"

Ideally any function/property that compiles just fine and works the same if you remove the @Composable annotation should trigger the warning, but even just covering basic cases would still be useful as some cases might be harder to detect.

[yogurtearl]

This scenario can be hard to visually detect in code review for non-trivial functions, especially if you are not in an IDE.