DebuggerTys doesn't exist any more

compiler/ghci/Debugger.hs

@@ -12,7 +12,6 @@
 
 module Debugger (pprintClosureCommand) where
 
-import qualified DebuggerTys
 import Linker
 import RtClosureInspect
 

compiler/main/GHC.hs

@@ -204,7 +204,6 @@ import Linker           ( HValue )
 import Data.Dynamic     ( Dynamic )
 
 import ByteCodeInstr
-import DebuggerTys
 import IdInfo
 import HscMain          ( hscParseIdentifier, hscTcExpr, hscKcType, hscStmt )
 import BreakArray