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      1 // RUN: %clang_cc1 -fsyntax-only -triple i386-apple-darwin9 -fobjc-gc -verify %s
      2 
      3 void f0(__weak id *);
      4 
      5 void test_f0(id *x) {
      6   f0(x);
      7 }
      8 
      9 @interface A
     10 @end
     11 
     12 void f1(__weak id*);
     13 void test_f1(__weak A** a) {
     14   f1(a);
     15 }
     16 
     17 @interface B : A
     18 @end
     19 
     20 void f2(__weak A**);
     21 void test_f2(__weak B** b) {
     22   f2(b);
     23 }
     24 
     25