[parser] Remove hoist_scope from DeclarationDescriptor

src/parsing/parser-base.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_PARSER_BASE_H
 #define V8_PARSING_PARSER_BASE_H
 
 #include "src/ast/ast.h"
 #include "src/ast/scopes.h"
 #include "src/bailout-reason.h"
@@ skipping 591 matching lines @@
 
    private:
     FunctionState* function_state_;
     int next_materialized_literal_index_;
     int expected_property_count_;
   };
 
   struct DeclarationDescriptor {
     enum Kind { NORMAL, PARAMETER };
     Scope* scope;
-    Scope* hoist_scope;
     VariableMode mode;
     int declaration_pos;
     int initialization_pos;
     Kind declaration_kind;
   };
 
   struct DeclarationParsingResult {
     struct Declaration {
       Declaration(ExpressionT pattern, int initializer_position,
                   ExpressionT initializer)
@@ skipping 3035 matching lines @@
       Consume(Token::LET);
       DCHECK(var_context != kStatement);
       parsing_result->descriptor.mode = LET;
       break;
     default:
       UNREACHABLE();  // by current callers
       break;
   }
 
   parsing_result->descriptor.scope = scope();
-  parsing_result->descriptor.hoist_scope = nullptr;
 
   // The scope of a var/const declared variable anywhere inside a function
   // is the entire function (ECMA-262, 3rd, 10.1.3, and 12.2). The scope
   // of a let declared variable is the scope of the immediately enclosing
   // block.
   int bindings_start = peek_position();
   do {
     // Parse binding pattern.
     FuncNameInferrer::State fni_state(fni_);
 
@@ skipping 2044 matching lines @@
     return;
   }
 }
 
 #undef CHECK_OK_VOID
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PARSING_PARSER_BASE_H