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diff --git a/testsuite/tests/safeHaskell/safeLanguage/SafeLang10.stderr b/testsuite/tests/safeHaskell/safeLanguage/SafeLang10.stderr
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+[1 of 3] Compiling SafeLang10_A     ( SafeLang10_A.hs, SafeLang10_A.o )
+[2 of 3] Compiling SafeLang10_B     ( SafeLang10_B.hs, SafeLang10_B.o )
+[3 of 3] Compiling Main             ( SafeLang10.hs, SafeLang10.o )
+
+SafeLang10.hs:8:13:
+    Unsafe overlapping instances for Pos [Int]
+      arising from a use of `res'
+    The matching instance is:
+      instance [overlap ok] [safe] Pos [Int]
+        -- Defined at SafeLang10_B.hs:14:10-18
+    It is compiled in a Safe module and as such can only
+    overlap instances from the same module, however it
+    overlaps the following instances from different modules:
+      instance Pos [a] -- Defined at SafeLang10_A.hs:13:10-16
+    In the expression: res [(1 :: Int)]
+    In an equation for `r': r = res [(1 :: Int)]
+    In the expression:
+      do { let r = res ...;
+             putStrLn $ "Result: " ++ show r;
+             putStrLn $ "Result: " ++ show function }