A few more config updates. Works with regression now.

configs/splash2/run.py:
    Update file for new config changes.
python/m5/config.py:
    - isParamContext() not defined any more
    - fix bug with re-assigning vectors over scalars
    and vice versa

--HG--
rename : configs/splash2/run.mpy => configs/splash2/run.py
extra : convert_revision : 2eb28a92f8de327f6dfddd01467c61e759275f6b

python/m5/config.py

@@ -268,7 +268,7 @@ class MetaSimObject(type):
                 e.args = (msg, )
                 raise
         # I would love to get rid of this
-        elif isSimObject(value) or isSimObjSequence(value) or isParamContext(value):
+        elif isSimObject(value) or isSimObjSequence(value):
            cls._values[attr] = value
         else:
             raise AttributeError, \
@@ -334,12 +334,15 @@ class SimObject(object):
                 e.args = (msg, )
                 raise
         # I would love to get rid of this
-        elif isSimObject(value) or isSimObjSequence(value) or isParamContext(value):
+        elif isSimObject(value) or isSimObjSequence(value):
             pass
         else:
             raise AttributeError, "Class %s has no parameter %s" \
                   % (self.__class__.__name__, attr)
 
+        # clear out old child with this name, if any
+        self.clear_child(attr)
+
         if isSimObject(value):
             value.set_path(self, attr)
         elif isSimObjSequence(value):
@@ -355,6 +358,16 @@ class SimObject(object):
             return self
         raise TypeError, "Non-zero index '%s' to SimObject" % key
 
+    # clear out children with given name, even if it's a vector
+    def clear_child(self, name):
+        if not self._children.has_key(name):
+            return
+        child = self._children[name]
+        if isinstance(child, SimObjVector):
+            for i in xrange(len(child)):
+                del self._children["s%d" % (name, i)]
+        del self._children[name]
+
     def add_child(self, name, value):
         self._children[name] = value