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[1 of 2] Compiling OverloadedRecFldsFail11_A ( OverloadedRecFldsFail11_A.hs, OverloadedRecFldsFail11_A.o )
[2 of 2] Compiling Main ( overloadedrecfldsfail11.hs, overloadedrecfldsfail11.o )
overloadedrecfldsfail11.hs:5:15: error: [-Wambiguous-fields (in -Wdefault), -Werror=ambiguous-fields]
The field ‘foo’ belonging to type S is ambiguous.
This will not be supported by -XDuplicateRecordFields in future releases of GHC.
You can use a qualified import or explicit case analysis to resolve the ambiguity.
overloadedrecfldsfail11.hs:5:15: error: [-Wdeprecations (in -Wdefault), -Werror=deprecations]
In the use of ‘foo’ (imported from OverloadedRecFldsFail11_A):
"Warning on a record field"
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