Delete the simulator when we don't need it anymore

src/arm/simulator-arm.cc

Index: src/arm/simulator-arm.cc
diff --git a/src/arm/simulator-arm.cc b/src/arm/simulator-arm.cc
index ac36687fcabe13209c2311a4973d611845ae41c4..a7fccddc96b63b085d3ad7a228c5ef4ae381b483 100644
--- a/src/arm/simulator-arm.cc
+++ b/src/arm/simulator-arm.cc
@@ -796,6 +796,10 @@ Simulator::Simulator(Isolate* isolate) : isolate_(isolate) {
 }
 
 
+Simulator::~Simulator() {
+}
+
+
 // When the generated code calls an external reference we need to catch that in
 // the simulator.  The external reference will be a function compiled for the
 // host architecture.  We need to call that function instead of trying to