Restart AST node numbering when we enter a function.

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 564 matching lines @@
 
 HGraph::HGraph(CompilationInfo* info)
     : isolate_(info->isolate()),
       next_block_id_(0),
       entry_block_(NULL),
       blocks_(8),
       values_(16),
       phi_list_(NULL) {
   start_environment_ =
       new(zone()) HEnvironment(NULL, info->scope(), info->closure());
-  start_environment_->set_ast_id(info->function()->id());
+  start_environment_->set_ast_id(AstNode::kRootAstId);
   entry_block_ = CreateBasicBlock();
   entry_block_->SetInitialEnvironment(start_environment_);
 }
 
 
 Handle<Code> HGraph::Compile(CompilationInfo* info) {
   int values = GetMaximumValueID();
   if (values > LAllocator::max_initial_value_ids()) {
     if (FLAG_trace_bailout) PrintF("Function is too big\n");
     return Handle<Code>::null();
@@ skipping 1600 matching lines @@
     // block in HInstruction::InsertAfter) seals the start block from
     // getting unwanted instructions inserted.
     //
     // TODO(kmillikin): Fix this.  Stop mutating the initial environment.
     // Make the Hydrogen instructions in the initial block into Hydrogen
     // values (but not instructions), present in the initial environment and
     // not replayed by the Lithium translation.
     HEnvironment* initial_env = environment()->CopyWithoutHistory();
     HBasicBlock* body_entry = CreateBasicBlock(initial_env);
     current_block()->Goto(body_entry);
-    body_entry->SetJoinId(info()->function()->id());
+    body_entry->SetJoinId(AstNode::kRootAstId);
     set_current_block(body_entry);
     VisitStatements(info()->function()->body());
     if (HasStackOverflow()) return NULL;
 
     if (current_block() != NULL) {
       HReturn* instr = new(zone()) HReturn(graph()->GetConstantUndefined());
       current_block()->FinishExit(instr);
       set_current_block(NULL);
     }
   }
@@ skipping 3450 matching lines @@
     }
   }
 
   // Initialize the stack-allocated locals to undefined.
   int local_base = arity + 1;
   int local_count = function->scope()->num_stack_slots();
   for (int i = 0; i < local_count; ++i) {
     inner->SetValueAt(local_base + i, undefined);
   }
 
-  inner->set_ast_id(function->id());
+  inner->set_ast_id(AstNode::kRootAstId);
   return inner;
 }
 
 
 void HEnvironment::PrintTo(StringStream* stream) {
   for (int i = 0; i < length(); i++) {
     if (i == 0) stream->Add("parameters\n");
     if (i == parameter_count()) stream->Add("locals\n");
     if (i == parameter_count() + local_count()) stream->Add("expressions");
     HValue* val = values_.at(i);
@@ skipping 314 matching lines @@
     }
   }
 
 #ifdef DEBUG
   if (graph_ != NULL) graph_->Verify();
   if (allocator_ != NULL) allocator_->Verify();
 #endif
 }
 
 } }  // namespace v8::internal