Convert array index to integer when computing pause distribution for spinning-balls.

benchmarks/spinning-balls/v.js

Index: benchmarks/spinning-balls/v.js
diff --git a/benchmarks/spinning-balls/v.js b/benchmarks/spinning-balls/v.js
index bd009738872740a9a1de2fe02949439479d1749a..d8a5e2a156e58e99ceb48adebdda5e51caf1aa96 100644
--- a/benchmarks/spinning-balls/v.js
+++ b/benchmarks/spinning-balls/v.js
@@ -353,8 +353,8 @@ function updateStats(pause) {
   if (pause > 20) {
     sumOfSquaredPauses += (pause - 20) * (pause - 20);
   }
-  pauseDistribution[pause / 10] |= 0;
-  pauseDistribution[pause / 10]++;
+  pauseDistribution[Math.floor(pause / 10)] |= 0;
+  pauseDistribution[Math.floor(pause / 10)]++;
 }