Add parsing for type queries

src/parsing/parser.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_H_
 #define V8_PARSING_PARSER_H_
 
 #include "src/allocation.h"
 #include "src/ast/ast.h"
 #include "src/ast/scopes.h"
@@ skipping 321 matching lines @@
 
     typedef Variable GeneratorVariable;
 
     typedef v8::internal::AstProperties AstProperties;
 
     typedef v8::internal::ExpressionClassifier<ParserTraits>
         ExpressionClassifier;
 
     // Return types for traversing functions.
     typedef const AstRawString* Identifier;
+    typedef ZoneList<const AstRawString*>* IdentifierList;
     typedef v8::internal::Expression* Expression;
     typedef Yield* YieldExpression;
     typedef v8::internal::FunctionLiteral* FunctionLiteral;
     typedef v8::internal::ClassLiteral* ClassLiteral;
     typedef v8::internal::Literal* Literal;
     typedef ObjectLiteral::Property* ObjectLiteralProperty;
     typedef ZoneList<v8::internal::Expression*>* ExpressionList;
     typedef ZoneList<ObjectLiteral::Property*>* PropertyList;
     typedef ParserFormalParameters::Parameter FormalParameter;
     typedef ParserFormalParameters FormalParameters;
@@ skipping 152 matching lines @@
   static ZoneList<typesystem::TypeParameter*>* NullTypeParameters() {
     return nullptr;
   }
   static bool IsNullTypeParameters(
       ZoneList<typesystem::TypeParameter*>* typ_pars) {
     return typ_pars == nullptr;
   }
   V8_INLINE ZoneList<typesystem::TypeParameter*>* EmptyTypeParameters() const;
   V8_INLINE ZoneList<typesystem::FormalParameter*>* EmptyFormalParameters()
       const;
+  static ZoneList<const AstRawString*>* NullIdentifierList() { return nullptr; }
+  V8_INLINE ZoneList<const AstRawString*>* EmptyIdentifierList() const;
 
   // Used in error return values.
   static ZoneList<Expression*>* NullExpressionList() {
     return NULL;
   }
   static const AstRawString* EmptyFormalParameter() { return NULL; }
 
   // Non-NULL empty string.
   V8_INLINE const AstRawString* EmptyIdentifierString();
 
@@ skipping 597 matching lines @@
 }
 
 
 ZoneList<typesystem::FormalParameter*>* ParserTraits::EmptyFormalParameters()
     const {
   return new (parser_->zone())
       ZoneList<typesystem::FormalParameter*>(1, parser_->zone());
 }
 
 
+ZoneList<const AstRawString*>* ParserTraits::EmptyIdentifierList() const {
+  return new (parser_->zone())
+      ZoneList<const AstRawString*>(1, parser_->zone());
+}
+
+
 const AstRawString* ParserTraits::EmptyIdentifierString() {
   return parser_->ast_value_factory()->empty_string();
 }
 
 
 void ParserTraits::SkipLazyFunctionBody(int* materialized_literal_count,
                                         int* expected_property_count, bool* ok,
                                         Scanner::BookmarkScope* bookmark) {
   return parser_->SkipLazyFunctionBody(materialized_literal_count,
                                        expected_property_count, ok, bookmark);
@@ skipping 142 matching lines @@
 
 DoExpression* ParserTraits::ParseDoExpression(bool* ok) {
   return parser_->ParseDoExpression(ok);
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PARSING_PARSER_H_