TcErrors: Fix plural form of "instance" error

Previously "types" was inappropriately made plural instead of
"instance",

    instance Eq Ordering -- Defined in ‘GHC.Classes’
    ...plus 24 others
    ...plus 13 instance involving out-of-scope typess

1 files changed, 2 insertions, 2 deletions

diff --git a/testsuite/tests/annotations/should_fail/annfail10.stderr b/testsuite/tests/annotations/should_fail/annfail10.stderr
index 3d55d4aed4..9d42f5117d 100644
--- a/testsuite/tests/annotations/should_fail/annfail10.stderr
+++ b/testsuite/tests/annotations/should_fail/annfail10.stderr
@@ -10,7 +10,7 @@ annfail10.hs:9:1: error:
         instance Data.Data.Data Ordering -- Defined in ‘Data.Data’
         instance Data.Data.Data Integer -- Defined in ‘Data.Data’
         ...plus 15 others
-        ...plus 24 instance involving out-of-scope typess
+        ...plus 24 instances involving out-of-scope types
         (use -fprint-potential-instances to see them all)
     • In the annotation: {-# ANN f 1 #-}
 
@@ -23,6 +23,6 @@ annfail10.hs:9:11: error:
         instance Num Double -- Defined in ‘GHC.Float’
         instance Num Float -- Defined in ‘GHC.Float’
         ...plus two others
-        ...plus 12 instance involving out-of-scope typess
+        ...plus 12 instances involving out-of-scope types
         (use -fprint-potential-instances to see them all)
     • In the annotation: {-# ANN f 1 #-}