Replace long running loops by OptimizeFunctionOnNextCall in some tests.

test/mjsunit/compiler/regress-closures-with-eval.js

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+// Flags: --allow-natives-syntax
+
 // Verifies that closures in presence of eval work fine.
 function withEval(expr, filter) {
   function walk(v) {
     for (var i in v) {
       for (var i in v) {}
     }
+    %OptimizeFunctionOnNextCall(filter);
     return filter(v);
   }
 
   var o = eval(expr);
   return walk(o);
 }
 
 function makeTagInfoJSON(n) {
   var a = new Array(n);
   for (var i = 0; i < n; i++) a.push('{}');
   return a;
 }
 
 var expr = '([' + makeTagInfoJSON(128).join(', ') + '])'
 
-for (var n = 0; n < 300; n++) {
+for (var n = 0; n < 5; n++) {
   withEval(expr, function(a) { return a; });
 }
+%OptimizeFunctionOnNextCall(withEval);
+withEval(expr, function(a) { return a; });