Deallocate finalizer handler when shutting down

We weren't deallocating the finalizer handler. We also don't need
to clean up the process_list_ and live_list_ because they are part of
the list lists too and will be cleaned up there.

vm/environment.cpp

@@ -85,6 +85,7 @@ namespace rubinius {
     , signature_(0)
     , version_(0)
     , signal_handler_(NULL)
+    , finalizer_handler_(NULL)
   {
 #ifdef ENABLE_LLVM
     if(!llvm::llvm_start_multithreaded()) {
@@ -136,6 +137,7 @@ namespace rubinius {
 
   Environment::~Environment() {
     delete signal_handler_;
+    delete finalizer_handler_;
 
     VM::discard(state, root_vm);
     SharedState::discard(shared);
@@ -352,7 +354,7 @@ namespace rubinius {
   }
 
   void Environment::start_finalizer() {
-    new FinalizerHandler(state);
+    finalizer_handler_ = new FinalizerHandler(state);
   }
 
   void Environment::load_vm_options(int argc, char**argv) {

vm/environment.hpp

@@ -13,6 +13,7 @@ namespace rubinius {
   class ConfigParser;
   class QueryAgent;
   class SignalHandler;
+  class FinalizerHandler;
 
   /**
    * Thrown when unable to find Rubinius runtime directories.
@@ -57,6 +58,7 @@ namespace rubinius {
     int version_;
 
     SignalHandler* signal_handler_;
+    FinalizerHandler* finalizer_handler_;
 
     std::string system_prefix_;
 

vm/gc/finalize.cpp

@@ -92,8 +92,6 @@ namespace rubinius {
     shared_.auxiliary_threads()->unregister_thread(this);
 
     if(iterator_) delete iterator_;
-    if(process_list_) delete process_list_;
-    if(live_list_) delete live_list_;
 
     for(FinalizeObjectsList::iterator i = lists_->begin(); i != lists_->end(); ++i) {
       delete *i;