[test] Speed-up regression test for growing stores.

test/mjsunit/regress/regress-crbug-635798.js

Index: test/mjsunit/regress/regress-crbug-635798.js
diff --git a/test/mjsunit/regress/regress-crbug-635798.js b/test/mjsunit/regress/regress-crbug-635798.js
index 5456682ddc74a41137feae0bfce48136b664ec56..0a89aa19f7725b8d99581da210e7ef3c2dee73fe 100644
--- a/test/mjsunit/regress/regress-crbug-635798.js
+++ b/test/mjsunit/regress/regress-crbug-635798.js
@@ -8,7 +8,7 @@ function foo() {
   var x = [];
   var y = [];
   x.__proto__ = y;
-  for (var i = 0; i < 200000; ++i) {
+  for (var i = 0; i < 10000; ++i) {

[Michael Achenbach, 2016/08/30 06:55:18]

Would that still reproduce the original bug? I.e. is it a valuable regression
test? Did you check what's the lower bound or is this number just as random as
the first?

     y[i] = 1;
   }
 }