Speculative fix for timeouts (hangs) in

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_tools_api.h"
@@ skipping 1093 matching lines @@
   intptr_t len = -1;
   DartUtils::ReadFile(buffer, &len, file);
   if ((*buffer == NULL) || (len == -1)) {
     fprintf(stderr,
             "Error: Unable to read snapshot file %s\n", qualified_filename);
     fflush(stderr);
     Platform::Exit(kErrorExitCode);
   }
   DartUtils::CloseFile(file);
   if (concat != NULL) {
-    delete concat;
+    delete[] concat;
   }
 }
 
 
 static void ReadExecutableSnapshotFile(const char* snapshot_directory,
                                        const char* filename,
                                        const uint8_t** buffer) {
   char* concat = NULL;
   const char* qualified_filename;
   if ((snapshot_directory != NULL) && (strlen(snapshot_directory) > 0)) {
     intptr_t len = snprintf(NULL, 0, "%s/%s", snapshot_directory, filename);
     concat = new char[len + 1];
     snprintf(concat, len + 1, "%s/%s", snapshot_directory, filename);
     qualified_filename = concat;
   } else {
     qualified_filename = filename;
   }
 
   intptr_t len = -1;
   *buffer = reinterpret_cast<uint8_t*>(
       DartUtils::MapExecutable(qualified_filename, &len));
   if ((*buffer == NULL) || (len == -1)) {
     fprintf(stderr,
             "Error: Unable to read snapshot file %s\n", qualified_filename);
     fflush(stderr);
     Platform::Exit(kErrorExitCode);
   }
   if (concat != NULL) {
-    delete concat;
+    delete[] concat;
   }
 }
 
 
 static void* LoadLibrarySymbol(const char* snapshot_directory,
                                const char* libname,
                                const char* symname) {
   char* concat = NULL;
   const char* qualified_libname;
   if ((snapshot_directory != NULL) && (strlen(snapshot_directory) > 0)) {
@@ skipping 591 matching lines @@
   Platform::Exit(Process::GlobalExitCode());
 }
 
 }  // namespace bin
 }  // namespace dart
 
 int main(int argc, char** argv) {
   dart::bin::main(argc, argv);
   UNREACHABLE();
 }