Ignore just one deprecated warning. e.g.: calling UIDevice's |-uniqueIdentifier| without warning.

ky_ignoring_just_one_deprecated_warning.m

/*
  Disable deprecated-declarations warning.
  See http://clang.llvm.org/docs/UsersManual.html#diagnostics_pragmas
  
  Basic workflow:
  
    1. push current warnings onto stack
    2. ignore warning we know will get thrown
    3. do dodgy thing that causes warning
    4. pop warnings - go back to what we had before we started fiddling with them
  
  OP: http://blog.goosoftware.co.uk/2012/04/18/unique-identifier-no-warnings/

  Marked Posts:
  - http://vgable.com/blog/2009/06/15/ignoring-just-one-deprecated-warning/
  - http://stackoverflow.com/questions/6481808/xcode-ios-get-rid-of-deprecation-warnings-for-specific-constants
*/
#ifdef TESTING
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
    [TestFlight setDeviceIdentifier:[[UIDevice currentDevice] uniqueIdentifier]];
#pragma clang diagnostic pop
#endif