Rename new T9858d to T9858e to avoid test name clash

(Next time, when fixing someone else’s mistake, I really shouldn’t do
the precise same thing.)

testsuite/tests/typecheck/should_fail/T9858d.hs → testsuite/tests/typecheck/should_fail/T9858e.hs

 {-# LANGUAGE ImpredicativeTypes, FlexibleContexts #-}
 
-module T9858d where
+module T9858e where
 import Data.Typeable
 
 i :: (Typeable a, Typeable b) => Proxy (a b) -> TypeRep

testsuite/tests/typecheck/should_fail/T9858d.stderr → testsuite/tests/typecheck/should_fail/T9858e.stderr

 
-T9858d.hs:9:8: error:
+T9858e.hs:9:8: error:
     Couldn't match type ‘Eq Int => Int’ with ‘a0 b0’
     Expected type: Proxy (a0 b0)
       Actual type: Proxy (Eq Int => Int)

testsuite/tests/typecheck/should_fail/all.T

@@ -358,4 +358,4 @@ test('T10194', normal, compile_fail, [''])
 test('T8030', normal, compile_fail, [''])
 test('T9858a', normal, compile_fail, [''])
 test('T9858b', normal, compile_fail, [''])
-test('T9858d', normal, compile_fail, [''])
+test('T9858e', normal, compile_fail, [''])