Bug 524734 - js1_8_1/trace/regress-451974-01.js, regress-451974-02.js fix random failure.

js/src/tests/js1_8_1/trace/regress-451974-01.js

@@ -46,8 +46,8 @@ printBugNumber(BUGNUMBER);
 printStatus (summary);
 
 var chars = '0123456789abcdef';
-var size = 1000;
-var mult = 100;
+var size = 10000;
+var mult = 1000;
 var densearray = [];
 var lsize = size;
 

js/src/tests/js1_8_1/trace/regress-451974-02.js

@@ -54,8 +54,8 @@ function test()
   printStatus (summary);
 
   var chars = '0123456789abcdef';
-  var size = 1000;
-  var mult = 100;
+  var size = 10000;
+  var mult = 1000;
   var densearray = [];
   var lsize = size;