Drop unused end-position from VariableProxy

src/parsing/preparser.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_PARSING_PREPARSER_H
 #define V8_PARSING_PREPARSER_H
 
 #include "src/ast/scopes.h"
 #include "src/parsing/parser-base.h"
 
@@ skipping 1365 matching lines @@
   V8_INLINE PreParserExpression FunctionSentExpression(int pos) {
     return PreParserExpression::Default();
   }
 
   V8_INLINE PreParserExpression ExpressionFromLiteral(Token::Value token,
                                                       int pos) {
     return PreParserExpression::Default();
   }
 
   PreParserExpression ExpressionFromIdentifier(
-      PreParserIdentifier name, int start_position, int end_position,
+      PreParserIdentifier name, int start_position,
       InferName infer = InferName::kYes);
 
   V8_INLINE PreParserExpression ExpressionFromString(int pos) {
     if (scanner()->UnescapedLiteralMatches("use strict", 10)) {
       return PreParserExpression::UseStrictStringLiteral();
     }
     return PreParserExpression::StringLiteral();
   }
 
   V8_INLINE PreParserExpressionList NewExpressionList(int size) const {
@@ skipping 143 matching lines @@
     function_state_->NextMaterializedLiteralIndex();
     function_state_->NextMaterializedLiteralIndex();
   }
   return EmptyExpression();
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PARSING_PREPARSER_H