More ^= to |=

runtime/vm/flow_graph_inliner.cc

 // Copyright (c) 2013, 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 "vm/flow_graph_inliner.h"
 
 #include "vm/compiler.h"
 #include "vm/flags.h"
 #include "vm/flow_graph.h"
 #include "vm/flow_graph_builder.h"
@@ skipping 774 matching lines @@
         arguments->Add(NULL);
         param_stubs->Add(GetDefaultValue(i, parsed_function));
       }
       return;
     }
 
     // Otherwise, build a collection of name/argument pairs.
     GrowableArray<NamedArgument> named_args(argument_names_count);
     for (intptr_t i = 0; i < argument_names.Length(); ++i) {
       String& arg_name = String::Handle(Isolate::Current());
-      arg_name ^= argument_names.At(i);
+      arg_name |= argument_names.At(i);
       named_args.Add(
           NamedArgument(&arg_name, (*arguments)[i + fixed_param_count]));
     }
 
     // Truncate the arguments array to just fixed parameters.
     arguments->TruncateTo(fixed_param_count);
 
     // For each optional named parameter, add the actual argument or its
     // default if no argument is passed.
     for (intptr_t i = fixed_param_count; i < param_count; ++i) {
@@ skipping 77 matching lines @@
         OS::Print("After Inlining of %s\n", flow_graph_->
                   parsed_function().function().ToFullyQualifiedCString());
         FlowGraphPrinter printer(*flow_graph_);
         printer.PrintBlocks();
       }
     }
   }
 }
 
 }  // namespace dart