Push the general AST id field down from ASTNode to Expression.

src/hydrogen.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 2425 matching lines @@
 
     if (cond_false->HasPredecessor()) {
       cond_false->SetJoinId(stmt->ElseId());
       set_current_block(cond_false);
       CHECK_BAILOUT(Visit(stmt->else_statement()));
       cond_false = current_block();
     } else {
       cond_false = NULL;
     }
 
-    HBasicBlock* join = CreateJoin(cond_true, cond_false, stmt->id());
+    HBasicBlock* join = CreateJoin(cond_true, cond_false, stmt->IfId());
     set_current_block(join);
   }
 }
 
 
 HBasicBlock* HGraphBuilder::BreakAndContinueScope::Get(
     BreakableStatement* stmt,
     BreakType type) {
   BreakAndContinueScope* current = this;
   while (current != NULL && current->info()->target() != stmt) {
@@ skipping 3849 matching lines @@
     }
   }
 
 #ifdef DEBUG
   if (graph_ != NULL) graph_->Verify();
   if (allocator_ != NULL) allocator_->Verify();
 #endif
 }
 
 } }  // namespace v8::internal