Use FunctionLiteral for class constructor

src/parser.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/v8.h"
 
 #include "src/api.h"
 #include "src/ast.h"
 #include "src/bailout-reason.h"
 #include "src/base/platform/platform.h"
@@ skipping 3990 matching lines @@
 
   Expression* extends = NULL;
   if (Check(Token::EXTENDS)) {
     block_scope->set_start_position(scanner()->location().end_pos);
     extends = ParseLeftHandSideExpression(CHECK_OK);
   } else {
     block_scope->set_start_position(scanner()->location().end_pos);
   }
 
   ZoneList<ObjectLiteral::Property*>* properties = NewPropertyList(4, zone());
-  Expression* constructor = NULL;
+  FunctionLiteral* constructor = NULL;
   bool has_seen_constructor = false;
 
   Expect(Token::LBRACE, CHECK_OK);
   while (peek() != Token::RBRACE) {
     if (Check(Token::SEMICOLON)) continue;
     if (fni_ != NULL) fni_->Enter();
     const bool in_class = true;
     const bool is_static = false;
     bool is_computed_name = false;  // Classes do not care about computed
                                     // property names here.
     ObjectLiteral::Property* property =
         ParsePropertyDefinition(NULL, in_class, is_static, &is_computed_name,
                                 &has_seen_constructor, CHECK_OK);
 
     if (has_seen_constructor && constructor == NULL) {
-      constructor = GetPropertyValue(property);
+      constructor = GetPropertyValue(property)->AsFunctionLiteral();
+      DCHECK_NOT_NULL(constructor);
     } else {
       properties->Add(property, zone());
     }
 
     if (fni_ != NULL) {
       fni_->Infer();
       fni_->Leave();
     }
   }
 
@@ skipping 1302 matching lines @@
     } else {
       const uc16* data = reinterpret_cast<const uc16*>(raw_string->raw_data());
       running_hash = StringHasher::ComputeRunningHash(running_hash, data,
                                                       raw_string->length());
     }
   }
 
   return running_hash;
 }
 } }  // namespace v8::internal