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author | Edward Z. Yang <ezyang@cs.stanford.edu> | 2016-10-14 00:11:10 -0700 |
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committer | Edward Z. Yang <ezyang@cs.stanford.edu> | 2016-10-20 12:45:40 -0700 |
commit | 9df4ce4f89b6d999822ae30ff777bdaf26665c06 (patch) | |
tree | 03016e5127a1f3d8f74a2fe19c1aceaf7148cc4e /testsuite/tests/backpack/should_fail/bkpfail15.stderr | |
parent | 7e77c4b2ee08d7f88df8ba47537640ec1bd70bfe (diff) | |
download | haskell-9df4ce4f89b6d999822ae30ff777bdaf26665c06.tar.gz |
Only delete instances when merging when there is an exact match.
Summary:
Previously, we deleted if the heads matched, which meant that
we effectively were picking an arbitrary instance if there
were incompatible instances. The new behavior makes more sense,
although without incoherent instances you are unlikely to
be able to do anything useful with the instances.
Signed-off-by: Edward Z. Yang <ezyang@cs.stanford.edu>
Test Plan: validate
Reviewers: austin, bgamari
Subscribers: thomie
Differential Revision: https://phabricator.haskell.org/D2596
Diffstat (limited to 'testsuite/tests/backpack/should_fail/bkpfail15.stderr')
0 files changed, 0 insertions, 0 deletions