Add Platform.packageRoot and Platform.executableArguments to dart:io.

runtime/bin/main.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include <stdlib.h>
 #include <string.h>
 #include <stdio.h>
 
 #include "include/dart_api.h"
 #include "include/dart_debugger_api.h"
@@ skipping 321 matching lines @@
       }
       const char* kVerboseDebug = "--verbose_debug";
       if (strncmp(argv[i], kVerboseDebug, strlen(kVerboseDebug)) == 0) {
         *verbose_debug_seen = true;
       }
       vm_options->AddArgument(argv[i]);
       i++;
     }
   }
 
+  // The arguments to the VM are at positions 1 through i-1 in argv.
+  Platform::SetExecutableArguments(i, argv);
 
   // Get the script name.
   if (i < argc) {
     *script_name = argv[i];
     i++;
   } else {
     return -1;
   }
 
   // Parse out options to be passed to dart main.
@@ skipping 102 matching lines @@
     char errbuf[256];
     snprintf(errbuf, sizeof(errbuf),
              "Expected a library when loading script: %s",
              script_uri);
     *error = strdup(errbuf);
     Dart_ExitScope();
     Dart_ShutdownIsolate();
     return NULL;
   }
 
+  Platform::SetPackageRoot(package_root);
   Dart_Handle io_lib_url = DartUtils::NewString("dart:io");
   CHECK_RESULT(io_lib_url);
   Dart_Handle io_lib = Dart_LookupLibrary(io_lib_url);
   CHECK_RESULT(io_lib);
   Dart_Handle platform_class_name = DartUtils::NewString("Platform");
   CHECK_RESULT(platform_class_name);
   Dart_Handle platform_type =
       Dart_GetType(io_lib, platform_class_name, 0, NULL);
   CHECK_RESULT(platform_type);
   Dart_Handle script_name_name = DartUtils::NewString("_nativeScript");
@@ skipping 392 matching lines @@
 
   return Process::GlobalExitCode();
 }
 
 }  // namespace bin
 }  // namespace dart
 
 int main(int argc, char** argv) {
   return dart::bin::main(argc, argv);
 }