text: // RUN: %clang_cc1 -triple x86_64-apple-darwin9 -fsyntax-only -fblocks -verify %s
  
  void f0() __attribute__((availability(macosx,introduced=10.4,deprecated=10.2))); // expected-warning{{feature cannot be deprecated in OS X version 10.2 before it was introduced in version 10.4; attribute ignored}}
  void f1() __attribute__((availability(ios,obsoleted=2.1,deprecated=3.0)));  // expected-warning{{feature cannot be obsoleted in iOS version 2.1 before it was deprecated in version 3.0; attribute ignored}}
  void f2() __attribute__((availability(ios,introduced=2.1,deprecated=2.1)));
  
  void f3() __attribute__((availability(otheros,introduced=2.2))); // expected-warning{{unknown platform 'otheros' in availability macro}}
  
  // rdar://10095131
  extern void 
  ATSFontGetName(const char *oName) __attribute__((availability(macosx,introduced=8.0,deprecated=9.0, message="use CTFontCopyFullName"))); // expected-note {{'ATSFontGetName' has been explicitly marked deprecated here}}
  
  extern void
  ATSFontGetPostScriptName(int flags) __attribute__((availability(macosx,introduced=8.0,obsoleted=9.0, message="use ATSFontGetFullPostScriptName"))); // expected-note {{'ATSFontGetPostScriptName' has been explicitly marked unavailable here}}
  
  void test_10095131() {
    ATSFontGetName("Hello"); // expected-warning {{'ATSFontGetName' is deprecated: first deprecated in OS X 9.0 - use CTFontCopyFullName}}
    ATSFontGetPostScriptName(100); // expected-error {{'ATSFontGetPostScriptName' is unavailable: obsoleted in OS X 9.0 - use ATSFontGetFullPostScriptName}}
  }
  
  // rdar://10711037
  __attribute__((availability(macos, unavailable))) // expected-warning {{attribute 'availability' is ignored}}
  enum {
      NSDataWritingFileProtectionWriteOnly = 0x30000000,
      NSDataWritingFileProtectionCompleteUntilUserAuthentication = 0x40000000,
  };
  
  void f4(int) __attribute__((availability(ios,deprecated=3.0)));
  void f4(int) __attribute__((availability(ios,introduced=4.0))); // expected-warning {{feature cannot be deprecated in iOS version 3.0 before it was introduced in version 4.0; attribute ignored}}
  
  void f5(int) __attribute__((availability(ios,deprecated=3.0),
                              availability(ios,introduced=4.0)));  // expected-warning {{feature cannot be deprecated in iOS version 3.0 before it was introduced in version 4.0; attribute ignored}}
  
  void f6(int) __attribute__((availability(ios,deprecated=3.0))); // expected-note {{previous attribute is here}}
  void f6(int) __attribute__((availability(ios,deprecated=4.0))); // expected-warning {{availability does not match previous declaration}}
  
  void f7(int) __attribute__((availability(ios,introduced=2.0)));
  void f7(int) __attribute__((availability(ios,deprecated=3.0))); // expected-note {{previous attribute is here}}
  void f7(int) __attribute__((availability(ios,deprecated=4.0))); // expected-warning {{availability does not match previous declaration}}
  
  
  // <rdar://problem/11886458>
  #if !__has_feature(attribute_availability_with_message)
  # error "Missing __has_feature"
  #endif
  
  extern int x __attribute__((availability(macosx,introduced=10.5)));
  extern int x;
  
  void f8() {
    int (^b)(int);
    b = ^ (int i) __attribute__((availability(macosx,introduced=10.2))) { return 1; }; // expected-warning {{'availability' attribute ignored}}
  }
  
  extern int x2 __attribute__((availability(macosx,introduced=10.2))); // expected-note {{previous attribute is here}}
  extern int x2 __attribute__((availability(macosx,introduced=10.5))); // expected-warning {{availability does not match previous declaration}}
  