Pavel Yaskevich b264e27a75 [CSOptimizer] A narrow fix for nil coalescing operator optimization ...

`??` is overloaded on optionality of the second parameter,
prevent ranking the argument candidates for this parameter
if there are candidates that come from failable initializer
overloads because non-optional candidates are always going
to be better and that can skew the selection.

Resolves: rdar://156853018

2025-07-28 00:35:02 -07:00

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