Remove class fields desugaring

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 655 matching lines @@
     int position;
     DeclarationParsingResult parsing_result;
   };
 
   struct ClassInfo {
    public:
     explicit ClassInfo(ParserBase* parser)
         : proxy(nullptr),
           extends(parser->impl()->EmptyExpression()),
           properties(parser->impl()->NewClassPropertyList(4)),
-          instance_field_initializers(parser->impl()->NewExpressionList(0)),
           constructor(parser->impl()->EmptyFunctionLiteral()),
           has_seen_constructor(false),
-          static_initializer_var(nullptr),
           has_name_static_property(false),
           has_static_computed_names(false) {}
     VariableProxy* proxy;
     ExpressionT extends;
     typename Types::ClassPropertyList properties;
-    ExpressionListT instance_field_initializers;
     FunctionLiteralT constructor;
     bool has_seen_constructor;
-    Variable* static_initializer_var;
     bool has_name_static_property;
     bool has_static_computed_names;
   };
 
   DeclarationScope* NewScriptScope() const {
     return new (zone()) DeclarationScope(zone(), ast_value_factory());
   }
 
   DeclarationScope* NewVarblockScope() const {
     return new (zone()) DeclarationScope(zone(), scope(), BLOCK_SCOPE);
@@ skipping 1603 matching lines @@
   initializer_scope->set_end_position(scanner()->location().end_pos);
   typename Types::StatementList body = impl()->NewStatementList(1);
   body->Add(factory()->NewReturnStatement(value, kNoSourcePosition), zone());
   FunctionLiteralT function_literal = factory()->NewFunctionLiteral(
       impl()->EmptyIdentifierString(), initializer_scope, body,
       initializer_state.materialized_literal_count(),
       initializer_state.expected_property_count(), 0, 0,
       FunctionLiteral::kNoDuplicateParameters,
       FunctionLiteral::kAnonymousExpression, default_eager_compile_hint_,
       initializer_scope->start_position(), true, GetNextFunctionLiteralId());
-  function_literal->set_is_class_field_initializer(true);
   return function_literal;
 }
 
 template <typename Impl>
 typename ParserBase<Impl>::ObjectLiteralPropertyT
 ParserBase<Impl>::ParseObjectPropertyDefinition(ObjectLiteralChecker* checker,
                                                 bool* is_computed_name,
                                                 bool* ok) {
   bool is_get = false;
   bool is_set = false;
@@ skipping 832 matching lines @@
         bool is_super_call = result->IsSuperCallReference();
         if (spread_pos.IsValid()) {
           result = impl()->SpreadCall(result, args, pos);
         } else {
           result = factory()->NewCall(result, args, pos, is_possibly_eval);
         }
 
         // Explicit calls to the super constructor using super() perform an
         // implicit binding assignment to the 'this' variable.
         if (is_super_call) {
-          result = impl()->RewriteSuperCall(result);
           ExpressionT this_expr = impl()->ThisExpression(pos);
           result =
               factory()->NewAssignment(Token::INIT, this_expr, result, pos);
         }
 
         if (fni_ != NULL) fni_->RemoveLastFunction();
         break;
       }
 
       case Token::PERIOD: {
@@ skipping 2323 matching lines @@
     has_seen_constructor_ = true;
     return;
   }
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PARSING_PARSER_BASE_H