Do not add '-p' and 'c' options to VM options, the VM flag processing

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 418 matching lines @@
         if (!ProcessPackageRootOption(argv[i] + strlen(kPackageRoot),
                                       vm_options)) {
           i++;
           if ((argv[i] == NULL) ||
                !ProcessPackageRootOption(argv[i], vm_options)) {
             Log::PrintErr("Invalid option specification : '%s'\n", argv[i - 1]);
             i++;
             break;
           }
         }
+        i++;
+        continue;  // '-p' is not a VM flag so don't add to vm options.
       } else if (strncmp(argv[i], kChecked, strlen(kChecked)) == 0) {
         vm_options->AddArgument("--checked");
+        i++;
+        continue;  // '-c' is not a VM flag so don't add to vm options.
       } else if (!IsValidFlag(argv[i], kPrefix, kPrefixLen)) {
         break;
       }
+      // The following two flags are processed by both the embedder and
+      // the VM.
       const char* kPrintFlags1 = "--print-flags";
       const char* kPrintFlags2 = "--print_flags";
+      const char* kVerboseDebug1 = "--verbose_debug";
+      const char* kVerboseDebug2 = "--verbose-debug";
       if ((strncmp(argv[i], kPrintFlags1, strlen(kPrintFlags1)) == 0) ||
           (strncmp(argv[i], kPrintFlags2, strlen(kPrintFlags2)) == 0)) {
         *print_flags_seen = true;
-      }
-      const char* kVerboseDebug = "--verbose_debug";
-      if (strncmp(argv[i], kVerboseDebug, strlen(kVerboseDebug)) == 0) {
+      } else if ((strncmp(argv[i],
+                          kVerboseDebug1,
+                          strlen(kVerboseDebug1)) == 0) ||
+                 (strncmp(argv[i],
+                          kVerboseDebug2,
+                          strlen(kVerboseDebug2)) == 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);
 
@@ skipping 706 matching lines @@
   exit(Process::GlobalExitCode());
 }
 
 }  // namespace bin
 }  // namespace dart
 
 int main(int argc, char** argv) {
   dart::bin::main(argc, argv);
   UNREACHABLE();
 }