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     27 
     28 // Test breaking out of labelled blocks.
     29 function f(y) {
     30   var x = 0;
     31 
     32   foo: {
     33     x++;
     34     bar: {
     35        if (y == 0) break bar; else break foo;
     36     }
     37     x++;
     38   }
     39   return x;
     40 }
     41 
     42 assertEquals(2, f(0));
     43 assertEquals(1, f(1));
     44