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     27 
     28 
     29 // Test variants of for loops.
     30 function f(i, p) {
     31   for(; i < 10; ) {
     32     p.x = p.x + 1;
     33     i = i+1;
     34   }
     35 }
     36 var o = {x:42};
     37 f(1, o);
     38 assertEquals(51, o.x);
     39 
     40 
     41 function g(i, p) {
     42   for(; ; ) {
     43     if (i == 10) return;
     44     p.x = p.x + 1;
     45     i = i+1;
     46   }
     47 }
     48 o = {x:42};
     49 g(1, o);
     50 assertEquals(51, o.x);
     51 
     52 
     53 function h(p) {
     54   for(; p.x < 10; p.x++) {}
     55 }
     56 
     57 var o = {x:0};
     58 h(o);
     59 assertEquals(10, o.x);
     60