[Arguments] Mark functions with duplicated parameters.

src/scopes.h

 // 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 341 matching lines @@
   Variable* arguments_;
 
   // Illegal redeclaration.
   Expression* illegal_redecl_;
 
   // Scope-specific information.
   bool scope_inside_with_;  // this scope is inside a 'with' of some outer scope
   bool scope_contains_with_;  // this scope contains a 'with' statement
   bool scope_calls_eval_;  // this scope contains an 'eval' call
   bool strict_mode_;  // this scope is a strict mode scope
+  bool has_duplicate_parameters_;

[Martin Maly, 2011/04/07 11:00:49]

Is this still needed?

[Kevin Millikin (Chromium), 2011/04/07 11:02:00]

Good catch, removed.

 
   // Computed via PropagateScopeInfo.
   bool outer_scope_calls_eval_;
   bool inner_scope_calls_eval_;
   bool outer_scope_is_eval_scope_;
   bool force_eager_compilation_;
 
   // Computed via AllocateVariables; function scopes only.
   int num_stack_slots_;
   int num_heap_slots_;
@@ skipping 53 matching lines @@
     dynamics_ = NULL;
     receiver_ = NULL;
     function_ = NULL;
     arguments_ = NULL;
     illegal_redecl_ = NULL;
     scope_inside_with_ = false;
     scope_contains_with_ = false;
     scope_calls_eval_ = false;
     // Inherit the strict mode from the parent scope.
     strict_mode_ = (outer_scope != NULL) && outer_scope->strict_mode_;
+    has_duplicate_parameters_ = false;

[Martin Maly, 2011/04/07 11:00:49]

ditto.

     outer_scope_calls_eval_ = false;
     inner_scope_calls_eval_ = false;
     outer_scope_is_eval_scope_ = false;
     force_eager_compilation_ = false;
     num_stack_slots_ = 0;
     num_heap_slots_ = 0;
     scope_info_ = scope_info;
   }
 };
 
@@ skipping 46 matching lines @@
   int nesting_level_;
   // Nesting level of outermost scope that is contained in a with statement,
   // or kNotInsideWith if there are no with's around the current scope.
   int inside_with_level_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_SCOPES_H_