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

tools/node-polyfill.js

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
 //       with the distribution.
 //     * Neither the name of Google Inc. nor the names of its
 //       contributors may be used to endorse or promote products derived
 //       from this software without specific prior written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (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
+// Node polyfill
+var os = os || {
+  system: function(name, args) {
+    return require('child_process').execFileSync(
+        name, args, {encoding: 'utf8'}).toString();
+  }
+};
+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);
 
-table = [];
+  // 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;
+      }
+    }
+  }
 
-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];
-  }
-  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();
-  }
-  s += '}';
-  return s;
-}
-
-
-print("generating");
-
-var str = generate(50000);
-
-print("parsing "  + str.length);
-JSON.parse(str);
-
-print("done");