Add parsing for tuple types

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 336 matching lines @@
     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;
     typedef ZoneList<v8::internal::Statement*>* StatementList;
 
     struct TypeSystem {
       typedef v8::internal::typesystem::Type* Type;
-      typedef ZoneList<v8::internal::typesystem::Type*>* TypeArguments;
+      typedef ZoneList<v8::internal::typesystem::Type*>* TypeList;
       typedef v8::internal::typesystem::TypeParameter* TypeParameter;
       typedef ZoneList<v8::internal::typesystem::TypeParameter*>*
           TypeParameters;
       typedef v8::internal::typesystem::FormalParameter* FormalParameter;
       typedef ZoneList<v8::internal::typesystem::FormalParameter*>*
           FormalParameters;
     };
 
     // For constructing objects returned by the traversing functions.
     typedef AstNodeFactory Factory;
@@ skipping 124 matching lines @@
   }
   static Expression* EmptyExpression() {
     return NULL;
   }
   static Literal* EmptyLiteral() {
     return NULL;
   }
   static ObjectLiteralProperty* EmptyObjectLiteralProperty() { return NULL; }
   static FunctionLiteral* EmptyFunctionLiteral() { return NULL; }
 
-  static typesystem::Type* EmptyType() { return NULL; }
-  static ZoneList<typesystem::Type*>* NullTypeArguments() { return nullptr; }
-  V8_INLINE ZoneList<typesystem::Type*>* EmptyTypeArguments() const;
+  static typesystem::Type* EmptyType() { return nullptr; }
+  static ZoneList<typesystem::Type*>* NullTypeList() { return nullptr; }
+  V8_INLINE ZoneList<typesystem::Type*>* EmptyTypeList() const;
   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;
+  static typesystem::Type* HoleTypeElement() { return nullptr; }
 
   // 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 578 matching lines @@
   return parser_->scanner()->IdentifierIsFutureStrictReserved(identifier);
 }
 
 
 Scope* ParserTraits::NewScope(Scope* parent_scope, ScopeType scope_type,
                               FunctionKind kind) {
   return parser_->NewScope(parent_scope, scope_type, kind);
 }
 
 
-ZoneList<typesystem::Type*>* ParserTraits::EmptyTypeArguments() const {
+ZoneList<typesystem::Type*>* ParserTraits::EmptyTypeList() const {
   return new (parser_->zone()) ZoneList<typesystem::Type*>(1, parser_->zone());
 }
 
 
 ZoneList<typesystem::TypeParameter*>* ParserTraits::EmptyTypeParameters()
     const {
   return new (parser_->zone())
       ZoneList<typesystem::TypeParameter*>(1, parser_->zone());
 }
 
@@ skipping 166 matching lines @@
 
 DoExpression* ParserTraits::ParseDoExpression(bool* ok) {
   return parser_->ParseDoExpression(ok);
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PARSING_PARSER_H_