Use baseline code to compute message locations.

src/scopes.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_SCOPES_H_
 #define V8_SCOPES_H_
 
 #include "src/ast.h"
 #include "src/pending-compilation-error-handler.h"
 #include "src/zone.h"
@@ skipping 172 matching lines @@
 
   // ---------------------------------------------------------------------------
   // Illegal redeclaration support.
 
   // Set an expression node that will be executed when the scope is
   // entered. We only keep track of one illegal redeclaration node per
   // scope - the first one - so if you try to set it multiple times
   // the additional requests will be silently ignored.
   void SetIllegalRedeclaration(Expression* expression);
 
-  // Visit the illegal redeclaration expression. Do not call if the
+  // Retrieve the illegal redeclaration expression. Do not call if the
   // scope doesn't have an illegal redeclaration node.
-  void VisitIllegalRedeclaration(AstVisitor* visitor);
+  Expression* GetIllegalRedeclaration();
 
   // Check if the scope has (at least) one illegal redeclaration.
   bool HasIllegalRedeclaration() const { return illegal_redecl_ != NULL; }
 
   // For harmony block scoping mode: Check if the scope has conflicting var
   // declarations, i.e. a var declaration that has been hoisted from a nested
   // scope over a let binding of the same name.
   Declaration* CheckConflictingVarDeclarations();
 
   // ---------------------------------------------------------------------------
@@ skipping 587 matching lines @@
   PendingCompilationErrorHandler pending_error_handler_;
 
   // For tracking which classes are declared consecutively. Needed for strong
   // mode.
   int class_declaration_group_start_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_SCOPES_H_