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HEAD
Bump `base` version to 4.9.0.0 (closes #11026)
[ghc.git]
/
testsuite
/
tests
/
typecheck
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should_fail
/
tcfail154.stderr
1
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2
tcfail154.hs:12:10: error:
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Variable ‘a’ occurs more often
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in the constraint ‘C a a’ than in the instance head
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(Use UndecidableInstances to permit this)
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In the instance declaration for ‘Eq (T a)’
\r