[llvm] [mlir] [mlir] Move InlinerInterface from Transforms to Interfaces. (PR #84878)

[Mehdi Amini via llvm-commits]

joker-eph wrote:

> > I don't know how to model this with Bazel: would you create a "header only target" just for the header inclusion and another one for the link?
> 
> You can do that, but then a user of your dialect needs to explicitly add the link target as a dependency.

No: they are really header-only dependency, you don't need the link target.

You need to link to register the interface implementation only IIRC. 

CMake is lose with the header dependency, but has the same rules as Bazel for the link dependency (when we build with `-DBUILD_SHARED_LIBS=ON`)

https://github.com/llvm/llvm-project/pull/84878