Pass InferCtxt to DropRangeVisitor so we can resolve vars
#104753
Merged
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The types that we encounter in the
TypeckResultsthat we pass to theDropRangeVisitorare not yet fully resolved, since that only happens in writeback after type checking is complete.Instead, pass down the whole
InferCtxtso that we can resolve any inference vars that have been constrained since they were written into the results. This is similar to how theMemCategorizationContextin theExprUseVisitoralso needs to pass down both typeck results and the inference context.Fixes an ICE mentioned in this comment: #104382 (comment)