renaming of variables in template haskell quotes

The rename plugin does not work with template haskell quotes:
```haskell
{-# LANGUAGE TemplateHaskell #-}
module Main (main) where

main = $(
  let x = 'y'
      f = [| print |]
  in [| $f x |] )
```
In the above code, renaming bindings of `f` or `x` doesn't change their use. Renaming `f` or `x` where they are used gives an error `Renaming of an imported name is unsupported`