Add spread call micro-benchmarks.

test/js-perf-test/SixSpeed/spread/run.js

Index: test/js-perf-test/SixSpeed/spread/run.js
diff --git a/test/js-perf-test/Generators/run.js b/test/js-perf-test/SixSpeed/spread/run.js
similarity index 84%
copy from test/js-perf-test/Generators/run.js
copy to test/js-perf-test/SixSpeed/spread/run.js
index 6feb6f79fb4b4703c5deb20ac591d003716cc8cf..c46b29be98646753eb47a5ea1170af0ad479b5b8 100644
--- a/test/js-perf-test/Generators/run.js
+++ b/test/js-perf-test/SixSpeed/spread/run.js
@@ -2,14 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-
-load('../base.js');
-load('generators.js');
+load('../../base.js');
+load('spread.js');
 
 var success = true;
 
 function PrintResult(name, result) {
-  print(name + '-Generators(Score): ' + result);
+  print(name + '(Score): ' + result);
 }