727   HEnvironment* hydrogen_env = current_block_->last_environment();  in AssignEnvironment()
924     HEnvironment* last_environment = pred->last_environment();  in DoBasicBlock()  local
925     ASSERT(last_environment != NULL);  in DoBasicBlock()
932         last_environment = last_environment->Copy();  in DoBasicBlock()
935     block->UpdateEnvironment(last_environment);  in DoBasicBlock()
942     HEnvironment* last_environment = pred->last_environment();  in DoBasicBlock()  local
945       last_environment->SetValueAt(phi->merged_index(), phi);  in DoBasicBlock()
948       last_environment->SetValueAt(block->deleted_phis()->at(i),  in DoBasicBlock()
951     block->UpdateEnvironment(last_environment);  in DoBasicBlock()
2159   current_block_->last_environment()->set_ast_id(instr->ast_id());  in DoOsrEntry()
2230   HEnvironment* env = current_block_->last_environment();  in DoSimulate()
2271   HEnvironment* outer = current_block_->last_environment();  in DoEnterInlined()
2289   HEnvironment* outer = current_block_->last_environment()->  in DoLeaveInlined()