Issue 301 - adblockplustests: Use for (.. of ..)

chrome/content/tests/performance/common.js

 function runTests(testFunc, cleanupFunc, finalizeFunc)
 {
   const minRuns = 15;
   const maxRuns = 400;
   const targetConfidenceInterval = 0.04;
 
   let currentRun = 0;
   let results = [];
   function runNextTest()
   {
@@ skipping 31 matching lines @@
   }
 
   setTimeout(runNextTest, 0);
 }
 
 function getConfidenceInterval(results)
 {
   let sum = 0;
   let sqrsum = 0;
 
-  for each (let result in results)
+  for (let result of results)
   {
     sum += result;
     sqrsum += result * result;
   }
 
   let avg = sum / results.length;
   let stddev = Math.sqrt((sqrsum - 2 * sum * avg + avg * avg * results.length) / results.length);
   let confidence = 1.96 * stddev; // 95% confidence, assuming Gaussian distribution
   return [avg, stddev];
 }