Add script for running V8 benchmarks

benchmark/v8_bench.js

@@ -0,0 +1,15 @@
+// compare with "google-chrome deps/v8/benchmarks/run.html"
+var fs = require('fs');
+var path = require('path');
+var vm = require('vm');
+
+var dir = path.join(__dirname, '..', 'deps', 'v8', 'benchmarks');
+
+global.print = console.log;
+
+global.load = function (x) {
+  var source = fs.readFileSync(path.join(dir, x), 'utf8');
+  vm.runInThisContext(source, x);
+}
+
+load('run.js');