swift

f9e8041c - [Swiftify] Handle anonymous parameters (#81384)

[Swiftify] Handle anonymous parameters (#81384) _SwiftifyImport would expand with syntax errors if applied to a function with anonymous parameters, because it would try to refer to parameters using the name `_`. Detect these cases and create names for unnamed parameters. rdar://150955944 (cherry picked from commit 8e27947b2ad3f06664a1ac757a1adaffe8dceb1b)