[4.2][code-completion] Don't try to equate/convert GenericTypeParameterTypes computing type relations of completion results #16288
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…es computing type relations of completion results For call argument completion, if the expected type and completion result type are both GenericTypeParameterTypes, comparing them doesn't make sense we can't account for their different contexts at this point in the code, and hit assertions in the constraint solver if we try. For now, don't attempt to add a type relation for this case. Resolves rdar://problem/38153332.
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@swift-ci please test and merge |
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Cherry-pick of #16265 for swift-4.2-branch
Resolves rdar://problem/38153332