Update tests after instances are moved out of Control.Monad.Instances

The instance-leaks test is now gone, as we now expect the instances to
leak into haskell98.

testsuite/tests/deriving/should_compile/T3057.hs

 {-# LANGUAGE StandaloneDeriving, DeriveFunctor #-}
 module T3057 where
 
-deriving instance Functor (Either a)
+import T3057A
+
+deriving instance Functor (MyType a)
 
 

testsuite/tests/deriving/should_compile/T3057A.hs

+
+module T3057A where
+
+data MyType a b = C1 a | C2 b

testsuite/tests/deriving/should_compile/all.T

@@ -18,7 +18,7 @@ test('drv021', normal, compile, [''])
 test('deriving-1935', normal, compile, [''])
 test('T2378', normal, compile, [''])
 test('T2856', normal, compile, [''])
-test('T3057', normal, compile, [''])
+test('T3057', extra_clean(['T3057A.o', 'T3057A.hi']), multimod_compile, ['T3057', '-v0'])
 test('T3012', normal, compile, [''])
 test('T3965', normal, compile, [''])
 test('T4220', normal, compile, [''])

testsuite/tests/ghci/scripts/ghci011.stdout

@@ -16,6 +16,7 @@ data (,) a b = (,) a b 	-- Defined in `GHC.Tuple'
 instance (Bounded a, Bounded b) => Bounded (a, b)
   -- Defined in `GHC.Enum'
 instance (Eq a, Eq b) => Eq (a, b) -- Defined in `GHC.Classes'
+instance Functor ((,) a) -- Defined in `GHC.Base'
 instance (Ord a, Ord b) => Ord (a, b) -- Defined in `GHC.Classes'
 instance (Read a, Read b) => Read (a, b) -- Defined in `GHC.Read'
 instance (Show a, Show b) => Show (a, b) -- Defined in `GHC.Show'

testsuite/tests/ghci/scripts/ghci020.stdout

 data (->) a b 	-- Defined in `GHC.Prim'
+instance Monad ((->) r) -- Defined in `GHC.Base'
+instance Functor ((->) r) -- Defined in `GHC.Base'

testsuite/tests/lib/haskell98/Makefile

-TOP=../../..
-include $(TOP)/mk/boilerplate.mk
-include $(TOP)/mk/test.mk

testsuite/tests/lib/haskell98/all.T

-test('instance-leaks', normal, compile, ['-hide-all-packages -package haskell98'])

testsuite/tests/lib/haskell98/instance-leaks.hs

--- Check that the instances in Control.Monad.Instances do not leak
--- into any Haskell 98 modules.
-module Main where
-
--- import all Haskell 98 modules
-import Array
-import Char
-import Complex
-import CPUTime
-import Directory
-import IO
-import Ix
-import List
-import Locale
-import Maybe
-import Monad
-import Numeric
-import Random
-import Ratio
-import System
-import Time
-
--- This will fail if any of the Haskell 98 modules indirectly import
--- Control.Monad.Instances
-instance Functor ((->) r) where fmap = (.)
-
-main = undefined