Be cleverer in dataConCannotMatch, fixes Trac #5168
authorSimon Peyton Jones <simonpj@microsoft.com>
Wed, 4 May 2011 12:27:12 +0000 (13:27 +0100)
committerSimon Peyton Jones <simonpj@microsoft.com>
Wed, 4 May 2011 12:27:12 +0000 (13:27 +0100)
commita10a21dadac041e928ad5dab3810b68ab35bc9bb
treec51298b42fa17a5455c5195edd53408fc3b28e29
parent5096055e9aa46a7cc8b5a1292f7094fe588ec4d1
Be cleverer in dataConCannotMatch, fixes Trac #5168
compiler/basicTypes/DataCon.lhs
compiler/types/Unify.lhs