Fix source generation for strings that have \$ in them.

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 845 matching lines @@
         return ErrorExit("Error setting breakpoint at '%s': %s\n",
                          breakpoint_at,
                          Dart_GetError(result));
       }
     }
     if (has_print_script) {
       result = GenerateScriptSource();
       if (Dart_IsError(result)) {
         return ErrorExit("%s\n", Dart_GetError(result));
       }
+    } else {
+      // Lookup and invoke the top level main function.
+      result = Dart_Invoke(library, DartUtils::NewString("main"), 0, NULL);
+      if (Dart_IsError(result)) {
+        return ErrorExit("%s\n", Dart_GetError(result));
+      }
+      // Keep handling messages until the last active receive port is closed.
+      result = Dart_RunLoop();
+      if (Dart_IsError(result)) {
+        return ErrorExit("%s\n", Dart_GetError(result));
+      }
     }
-
-    // Lookup and invoke the top level main function.
-    result = Dart_Invoke(library, DartUtils::NewString("main"), 0, NULL);
-    if (Dart_IsError(result)) {
-      return ErrorExit("%s\n", Dart_GetError(result));
-    }
-    // Keep handling messages until the last active receive port is closed.
-    result = Dart_RunLoop();
-    if (Dart_IsError(result)) {
-      return ErrorExit("%s\n", Dart_GetError(result));
-    }
   }
 
   Dart_ExitScope();
   if (vmstats_port >= 0) {
     VmStats::Stop();
   }
   // Shutdown the isolate.
   Dart_ShutdownIsolate();
   // Terminate process exit-code handler.
   Process::TerminateExitCodeHandler();
   // Free copied argument strings if converted.
   if (argv_converted) {
     for (int i = 0; i < argc; i++) free(argv[i]);
   }
 
   return Process::GlobalExitCode();
 }