remove v8-argv

bin/6to5-node

@@ -1,2 +1,56 @@
 #!/usr/bin/env node
-require("v8-argv")("--harmony", __dirname + "/_6to5-node");
+
+/**
+ * This tiny wrapper file checks for known node flags and appends them
+ * when found, before invoking the "real" _6to5-node(1) executable.
+ */
+
+var spawn = require("child_process").spawn;
+var args  = ["--harmony", __dirname + "/_6to5-node"];
+
+process.argv.slice(2).forEach(function(arg){
+  var flag = arg.split("=")[0];
+
+  switch (flag) {
+    case "-d":
+      args.unshift("--debug");
+      args.push("--no-timeouts");
+      break;
+    case "debug":
+    case "--debug":
+    case "--debug-brk":
+      args.unshift(arg);
+      args.push("--no-timeouts");
+      break;
+    case "-gc":
+    case "--expose-gc":
+      args.unshift("--expose-gc");
+      break;
+    case "--gc-global":
+    case "--harmony":
+    case "--harmony-proxies":
+    case "--harmony-collections":
+    case "--harmony-generators":
+    case "--no-deprecation":
+    case "--prof":
+    case "--throw-deprecation":
+    case "--trace-deprecation":
+      args.unshift(arg);
+      break;
+    default:
+      if (0 == arg.indexOf("--trace")) args.unshift(arg);
+      else args.push(arg);
+      break;
+  }
+});
+
+var proc = spawn(process.argv[0], args, { stdio: "inherit" });
+proc.on("exit", function (code, signal) {
+  process.on("exit", function (){
+    if (signal) {
+      process.kill(process.pid, signal);
+    } else {
+      process.exit(code);
+    }
+  });
+});