Added preparser strict-mode tests.

preparser/preparser-process.cc

 // Copyright 2011 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
@@ skipping 234 matching lines @@
       }
     }
     if (expects->end_pos >= 0) {
       if (expects->end_pos != reader.end_pos()) {
         fail(data, "Wrong error end position: Expected %i, found %i\n",
              expects->end_pos, reader.end_pos());
       }
     }
   } else if (reader.throws()) {
     const char* message = reader.message();
-    fail(data, "Throws unexpectedly with message: %s\n", message);
+    fail(data, "Throws unexpectedly with message: %s at location %d-%d\n",
+         message, reader.beg_pos(), reader.end_pos());
   }
 }
 
 
 ExceptionExpectation ParseExpectation(int argc, const char* argv[]) {
   ExceptionExpectation expects;
 
   // Parse exception expectations from (the remainder of) the command line.
   int arg_index = 0;
   // Skip any flags.
@@ skipping 81 matching lines @@
   if (data.stack_overflow()) {
     fail(&data, "ERROR: Stack overflow\n");
   }
 
   // Check that the expected exception is thrown, if an exception is
   // expected.
   CheckException(&data, &expects);
 
   return EXIT_SUCCESS;
 }