Xcode 9.3 beta 1: overly aggressive disallowing implementations marked with "deprecated" attribute

Originator:kbeitz
Number:rdar://37015317 Date Originated:2018.01.29
Status:Closed Resolved:fixed in 9.3 beta 2
Product:Xcode Product Version:9.3 beta 1
Classification: Reproducible:
 
Summary: Xcode 9.3 beta is emitting a diagnostic disallowing the implementation of classes and methods marked with __attribute__((deprecated()))


Steps to Reproduce:
1. create a class interface (or method interface) as follows:

  __attribute__((deprecated("TFNAutocompleteTableViewCell is deprecated. Do not use in new code")))
  @interface TFNAutocompleteTableViewCell : TFNTableViewCell

2. attempt to implement the class (or method interface)


Expected Results: as the class (or method) is only marked obsolete, its implementation should be allowed


Actual Results: TFNAutocompleteTableView.m:85:17: Implementing deprecated class


Version/Build: Xcode 9.3 beta

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