[esnext] implement frontend changes for async/await proposal

src/ast/ast.cc

 // 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.
 
 #include "src/ast/ast.h"
 
 #include <cmath>  // For isfinite.
 
 #include "src/ast/prettyprinter.h"
 #include "src/ast/scopes.h"
@@ skipping 216 matching lines @@
   return scope()->language_mode();
 }
 
 
 bool FunctionLiteral::NeedsHomeObject(Expression* expr) {
   if (expr == nullptr || !expr->IsFunctionLiteral()) return false;
   DCHECK_NOT_NULL(expr->AsFunctionLiteral()->scope());
   return expr->AsFunctionLiteral()->scope()->NeedsHomeObject();
 }
 
-
 ObjectLiteralProperty::ObjectLiteralProperty(Expression* key, Expression* value,
-                                             Kind kind, bool is_static,
+                                             Kind kind, MethodKind method_kind,
                                              bool is_computed_name)
     : key_(key),
       value_(value),
       kind_(kind),
+      method_kind_(method_kind),
       emit_store_(true),
-      is_static_(is_static),
       is_computed_name_(is_computed_name) {}
 
-
 ObjectLiteralProperty::ObjectLiteralProperty(AstValueFactory* ast_value_factory,
                                              Expression* key, Expression* value,
-                                             bool is_static,
+                                             MethodKind method_kind,
                                              bool is_computed_name)
     : key_(key),
       value_(value),
+      method_kind_(method_kind),
       emit_store_(true),
-      is_static_(is_static),
       is_computed_name_(is_computed_name) {
   if (!is_computed_name &&
       key->AsLiteral()->raw_value()->EqualsString(
           ast_value_factory->proto_string())) {
     kind_ = PROTOTYPE;
   } else if (value_->AsMaterializedLiteral() != NULL) {
     kind_ = MATERIALIZED_LITERAL;
   } else if (value_->IsLiteral()) {
     kind_ = CONSTANT;
   } else {
@@ skipping 564 matching lines @@
 bool Literal::Match(void* literal1, void* literal2) {
   const AstValue* x = static_cast<Literal*>(literal1)->raw_value();
   const AstValue* y = static_cast<Literal*>(literal2)->raw_value();
   return (x->IsString() && y->IsString() && x->AsString() == y->AsString()) ||
          (x->IsNumber() && y->IsNumber() && x->AsNumber() == y->AsNumber());
 }
 
 
 }  // namespace internal
 }  // namespace v8