text: // RUN: %clang_cc1 -fobjc-runtime-has-weak -fobjc-weak -fsyntax-only -verify %s
  
  __attribute__((objc_root_class))
  @interface A
  @property (weak) id wa; // expected-note {{property declared here}}
  @property (weak) id wb;
  @property (weak) id wc; // expected-note {{property declared here}}
  @property (weak) id wd;
  @property (unsafe_unretained) id ua;
  @property (unsafe_unretained) id ub; // expected-note {{property declared here}}
  @property (unsafe_unretained) id uc;
  @property (unsafe_unretained) id ud;
  @property (strong) id sa;
  @property (strong) id sb; // expected-note {{property declared here}}
  @property (strong) id sc;
  @property (strong) id sd;
  @end
  
  @implementation A {
    id _wa; // expected-error {{existing instance variable '_wa' for __weak property 'wa' must be __weak}}
    __weak id _wb;
    __unsafe_unretained id _wc; // expected-error {{existing instance variable '_wc' for __weak property 'wc' must be __weak}}
    id _ua;
    __weak id _ub; // expected-error {{existing instance variable '_ub' for property 'ub' with unsafe_unretained attribute must be __unsafe_unretained}}
    __unsafe_unretained id _uc;
    id _sa;
    __weak id _sb; // expected-error {{existing instance variable '_sb' for strong property 'sb' may not be __weak}}
    __unsafe_unretained id _sc;
  }
  @synthesize wa = _wa; // expected-note {{property synthesized here}}
  @synthesize wb = _wb;
  @synthesize wc = _wc; // expected-note {{property synthesized here}}
  @synthesize wd = _wd;
  @synthesize ua = _ua;
  @synthesize ub = _ub; // expected-note {{property synthesized here}}
  @synthesize uc = _uc;
  @synthesize ud = _ud;
  @synthesize sa = _sa;
  @synthesize sb = _sb; // expected-note {{property synthesized here}}
  @synthesize sc = _sc;
  @synthesize sd = _sd;
  @end
  
  void test_goto() {
    goto after; // expected-error {{cannot jump from this goto statement to its label}}
    __weak id x; // expected-note {{jump bypasses initialization of __weak variable}}}
  after:
    return;
  }
  
  void test_weak_cast(id *value) {
    __weak id *a = (__weak id*) value;
    id *b = (__weak id*) value; // expected-error {{initializing 'id *' with an expression of type '__weak id *' changes retain/release properties of pointer}}
    __weak id *c = (id*) value; // expected-error {{initializing '__weak id *' with an expression of type 'id *' changes retain/release properties of pointer}}
  }
  
  void test_unsafe_unretained_cast(id *value) {
    __unsafe_unretained id *a = (__unsafe_unretained id*) value;
    id *b = (__unsafe_unretained id*) value;
    __unsafe_unretained id *c = (id*) value;
  }
  
  void test_cast_qualifier_inference(__weak id *value) {
    __weak id *a = (id*) value;
    __unsafe_unretained id *b = (id*) value; // expected-error {{initializing 'id *' with an expression of type '__weak id *' changes retain/release properties of pointer}}
  }
  
  