Core Lint error, from visible kind applications

{-# Language RankNTypes       #-}
{-# Language GADTs            #-}
{-# Language TypeApplications #-}
{-# Language PolyKinds        #-}

{-# Options_GHC -dcore-lint #-}

import Data.Kind

data A :: forall k. Type where
 MkA :: A @k

this cute bug crashes under the visible kind application diff, produces:

$ ghci -ignore-dot-ghci 545_bug.hs
GHCi, version 8.7.20181017: http://www.haskell.org/ghc/  :? for help
[1 of 1] Compiling Main             ( 545_bug.hs, interpreted )
*** Core Lint errors : in result of Tidy Core ***
<no location info>: warning:
    In the type ‘forall (k :: k_a1xN[sk:1]) k. A’
    @ k_a1xN[sk:1] is out of scope
*** Offending Program ***
$WMkA [InlPrag=INLINE[2]] :: forall (k :: k_a1xN[sk:1]) k. A
[GblId[DataConWrapper],
 Caf=NoCafRefs,
 Unf=Unf{Src=InlineStable, TopLvl=True, Value=True, ConLike=True,
         WorkFree=True, Expandable=True,
         Guidance=ALWAYS_IF(arity=0,unsat_ok=True,boring_ok=True)
         Tmpl= \ (@ (k_a1y5 :: k_a1xN[sk:1])) (@ k_X1xP) ->
                 MkA @ k_X1xP @ k_a1y5}]
$WMkA
  = \ (@ (k_a1y5 :: k_a1xN[sk:1])) (@ k_X1xP) ->
      MkA @ k_X1xP @ k_a1y5

$trModule1_r1zb :: Addr#
[GblId, Caf=NoCafRefs, Unf=OtherCon []]
$trModule1_r1zb = "main"#

$trModule2_r1zu :: TrName
[GblId, Caf=NoCafRefs, Unf=OtherCon []]
$trModule2_r1zu = TrNameS $trModule1_r1zb

$trModule3_r1zv :: Addr#
[GblId, Caf=NoCafRefs, Unf=OtherCon []]
$trModule3_r1zv = "Main"#

$trModule4_r1zw :: TrName
[GblId, Caf=NoCafRefs, Unf=OtherCon []]
$trModule4_r1zw = TrNameS $trModule3_r1zv

$trModule :: Module
[GblId, Caf=NoCafRefs, Unf=OtherCon []]
$trModule = Module $trModule2_r1zu $trModule4_r1zw

$krep_r1zx :: KindRep
[GblId, Caf=NoCafRefs, Unf=OtherCon []]
$krep_r1zx = KindRepVar 1#

$krep1_r1zy :: KindRep
[GblId, Caf=NoCafRefs, Unf=OtherCon []]
$krep1_r1zy = KindRepVar 0#

$tcA1_r1zz :: Addr#
[GblId, Caf=NoCafRefs, Unf=OtherCon []]
$tcA1_r1zz = "A"#

$tcA2_r1zA :: TrName
[GblId, Caf=NoCafRefs, Unf=OtherCon []]
$tcA2_r1zA = TrNameS $tcA1_r1zz

$tcA :: TyCon
[GblId, Unf=OtherCon []]
$tcA
  = TyCon
      16201120719427956884##
      13080046616073797921##
      $trModule
      $tcA2_r1zA
      2#
      krep$*

$krep2_r1zB :: [KindRep]
[GblId, Caf=NoCafRefs, Unf=OtherCon []]
$krep2_r1zB = : @ KindRep $krep1_r1zy ([] @ KindRep)

$krep3_r1zC :: [KindRep]
[GblId, Caf=NoCafRefs, Unf=OtherCon []]
$krep3_r1zC = : @ KindRep $krep_r1zx $krep2_r1zB

$krep4_r1zD :: KindRep
[GblId, Unf=OtherCon []]
$krep4_r1zD = KindRepTyConApp $tcA $krep3_r1zC

$tc'MkA1_r1zE :: Addr#
[GblId, Caf=NoCafRefs, Unf=OtherCon []]
$tc'MkA1_r1zE = "'MkA"#

$tc'MkA2_r1zF :: TrName
[GblId, Caf=NoCafRefs, Unf=OtherCon []]
$tc'MkA2_r1zF = TrNameS $tc'MkA1_r1zE

$tc'MkA :: TyCon
[GblId, Unf=OtherCon []]
$tc'MkA
  = TyCon
      1695572187443655535##
      16213897990811765752##
      $trModule
      $tc'MkA2_r1zF
      2#
      $krep4_r1zD

*** End of Offense ***


<no location info>: error:
Compilation had errors


*** Exception: ExitFailure 1

Another example that fails

data
 Kl_kind :: forall (m :: k -> Type). Type where
 Kl      :: k -> Kl_kind @(m :: k -> Type)