debugger: workaround for shadowed items in locals view

The "<shadowed x>" space caused trouble on parameter passing.
As workaround, don't produce any.

Change-Id: Ibef1bfc8dc43c790ac2a2aeb52d3509347b6c997
Reviewed-on: http://codereview.qt.nokia.com/1068
Reviewed-by: hjk <qthjk@ovi.com>

share/qtcreator/dumper/bridge.py

@@ -105,7 +105,7 @@ if True:
                     #warn("SYMBOL %s  (%s): " % (symbol, name))
                     if name in shadowed:
                         level = shadowed[name]
-                        name1 = "%s <shadowed %s>" % (name, level)
+                        name1 = "%s@%s" % (name, level)
                         shadowed[name] = level + 1
                     else:
                         name1 = name