[parser] Cleanup: remove unused parameters to DeclareFunction

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/ast.h"
 #include "src/ast/scopes.h"
 #include "src/parsing/parser-base.h"
@@ skipping 1086 matching lines @@
                                                  bool* ok) {
     return PreParserStatement::Default();
   }
   V8_INLINE PreParserStatement LookupContinueTarget(PreParserIdentifier label,
                                                     bool* ok) {
     return PreParserStatement::Default();
   }
 
   V8_INLINE PreParserStatement DeclareFunction(
       PreParserIdentifier variable_name, PreParserExpression function,
-      VariableMode mode, int pos, bool is_generator, bool is_async,
-      bool is_sloppy_block_function, ZoneList<const AstRawString*>* names,
-      bool* ok) {
+      VariableMode mode, int pos, bool is_sloppy_block_function,
+      ZoneList<const AstRawString*>* names, bool* ok) {
     DCHECK_NULL(names);
     if (variable_name.string_ != nullptr) {
       DCHECK(track_unresolved_variables_);
       scope()->DeclareVariableName(variable_name.string_, mode);
       if (is_sloppy_block_function) {
         GetDeclarationScope()->DeclareSloppyBlockFunction(variable_name.string_,
                                                           scope());
       }
     }
     return Statement::Default();
@@ skipping 561 matching lines @@
     function_state_->NextMaterializedLiteralIndex();
     function_state_->NextMaterializedLiteralIndex();
   }
   return EmptyExpression();
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PARSING_PREPARSER_H