Add support for running the profiler output processing scripts with node.

tools/node-polyfill.js

Index: tools/node-polyfill.js
diff --git a/test/mjsunit/regress/regress-3976.js b/tools/node-polyfill.js
similarity index 61%
copy from test/mjsunit/regress/regress-3976.js
copy to tools/node-polyfill.js
index efa3ac03bc05a5b1018eb1bdd0db761154f2b664..a82b6370d0381615af6c3cee21314d43740844e7 100644
--- a/test/mjsunit/regress/regress-3976.js
+++ b/tools/node-polyfill.js
@@ -25,56 +25,40 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Flags: --max-old-space-size=60 --check-handle-count
-
-table = [];
-
-for (var i = 0; i < 32; i++) {
- table[i] = String.fromCharCode(i + 0x410);
-}
-
-
-var random = (function() {
-  var seed = 10;
-  return function() {
-    seed = (seed * 1009) % 8831;
-    return seed;
-  };
-})();
-
-
-function key(length) {
-  var s = "";
-  for (var i = 0; i < length; i++) {
-    s += table[random() % 32];
+// Node polyfill
+var os = os || {
+  system: function(name, args) {
+    return require('child_process').execFileSync(
+        name, args, {encoding: 'utf8'}).toString();
   }
-  return '"' + s + '"';
-}
-
-
-function value() {
-  return '[{' + '"field1" : ' + random() + ', "field2" : ' + random() + '}]';
-}
-
-
-function generate(n) {
-  var s = '{';
-  for (var i = 0; i < n; i++) {
-     if (i > 0) s += ', ';
-     s += key(random() % 10 + 7);
-     s += ':';
-     s += value();
+};
+var print = print || console.log.bind(console);
+var read = read || function(fileName) {
+  return require('fs').readFileSync(fileName, 'utf8');
+};
+if (typeof process !== "undefined" && process.argv) {
+  print("Polyfilling arguments");
+  arguments = process.argv.slice(2);
+
+  // Polyfill "readline()".
+  var fs = require('fs');
+  var fd = fs.openSync(arguments[0], 'rs');
+  var buf = new Buffer(4096);
+  var line = "";
+  var readline = function() {
+    while (true) {
+      var line_break = line.indexOf('\n');
+      if (line_break !== -1) {
+        var res = line.slice(0, line_break);
+        line = line.slice(line_break + 1);
+        return res;
+      }
+      var bytes = fs.readSync(fd, buf, 0, buf.length);
+      line += buf.toString('utf8', 0, bytes);
+      if (line.length === 0) {
+        return false;
+      }
+    }
   }
-  s += '}';
-  return s;
-}
-
 
-print("generating");
-
-var str = generate(50000);
-
-print("parsing "  + str.length);
-JSON.parse(str);
-
-print("done");
+}