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swift-mirror/validation-test/IDE
Pavel Yaskevich dc6f86d9b7 [CSRanking] Fix solution filtering not to erase everything when set is completely ambiguous
Since constraint solver has been improved to diagnose more problems
via "fixes", sometimes applying fixes might lead to producing solutions
which are completely ambiguous when compared to each other, and/or are
incomparable, which leads to `findBestSolutions` erasing all of them
while trying to compute best "partial" solution, which is incorrect.

Resolves: rdar://problem/42678836
2018-08-06 17:25:58 -07:00
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