[ast] Remove unused function Scope::ReportMessage.

src/ast/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_AST_SCOPES_H_
 #define V8_AST_SCOPES_H_
 
 #include "src/ast/ast.h"
 #include "src/base/hashmap.h"
 #include "src/pending-compilation-error-handler.h"

[adamk, 2016/06/21 16:30:31]

I think this can be removed, along with the member below.

 #include "src/zone.h"
 
 namespace v8 {
 namespace internal {
 
 class ParseInfo;
 
 // A hash map to support fast variable declaration and lookup.
 class VariableMap: public ZoneHashMap {
  public:
@@ skipping 543 matching lines @@
     // If IsSimpleParameterList is false, duplicate parameters are not allowed,
     // however `arguments` may be allowed if function is not strict code. Thus,
     // the assumptions explained above do not hold.
     return params_.Contains(variables_.Lookup(name));
   }
 
   SloppyBlockFunctionMap* sloppy_block_function_map() {
     return &sloppy_block_function_map_;
   }
 
-  // Error handling.
-  void ReportMessage(int start_position, int end_position,
-                     MessageTemplate::Template message,
-                     const AstRawString* arg);
-
   // ---------------------------------------------------------------------------
   // Debugging.
 
 #ifdef DEBUG
   void Print(int n = 0);  // n = indentation; n < 0 => don't print recursively
 
   // Check that the scope has positions assigned.
   void CheckScopePositions();
 #endif
 
@@ skipping 218 matching lines @@
     }
   }
 
   void SetDefaults(ScopeType type, Scope* outer_scope,
                    Handle<ScopeInfo> scope_info,
                    FunctionKind function_kind = kNormalFunction);
 
   AstValueFactory* ast_value_factory_;
   Zone* zone_;
 
   PendingCompilationErrorHandler pending_error_handler_;

[adamk, 2016/06/21 16:30:31]

Can this be removed too?

 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_AST_SCOPES_H_