since memoryMode was put into the System (from SimObject), things got broken - this fixes it so that changeToTiming/changeToAtomic works.

src/python/m5/SimObject.py:
    now that setMemoryMode is a method in System, need to convert the SimObject * _ccObject into a system ptr to call setMemoryMode.
src/sim/main.cc:
    need this conversion now.
src/sim/sim_object.hh:
    put the enum back into SimObject.
src/sim/system.hh:
    memoryMode is now a part of SimObject, need the ::'s

--HG--
extra : convert_revision : 0ade06957fa57b497798e1f50c237ca1badc821d

src/python/m5/SimObject.py

@@ -726,7 +726,12 @@ class SimObject(object):
             child.resume()
 
     def changeTiming(self, mode):
-        if isinstance(self, System):
+        if isinstance(self, m5.objects.System):
+            # i don't know if there's a better way to do this - calling
+            # setMemoryMode directly from self._ccObject results in calling
+            # SimObject::setMemoryMode, not the System::setMemoryMode
+##            system_ptr = cc_main.convertToSystemPtr(self._ccObject)
+##            system_ptr.setMemoryMode(mode)
             self._ccObject.setMemoryMode(mode)
         for child in self._children.itervalues():
             child.changeTiming(mode)