Several fixes to autoreload extension for new API.

I'm still seeing one failure, but this code is quite tricky to test,
so this is still in-progress.

IPython/extensions/autoreload.py

@@ -521,9 +521,9 b' class AutoreloadMagics(Magics):'
 class AutoreloadPlugin(Plugin):
     def __init__(self, shell=None, config=None):
         super(AutoreloadPlugin, self).__init__(shell=shell, config=config)
-        auto = AutoreloadMagics(shell)
-        self.shell.register_magics(auto)
-        self.shell.set_hook('pre_run_code_hook', auto.pre_run_code_hook)
+        self.auto_magics = AutoreloadMagics(shell)
+        shell.register_magics(self.auto_magics)
+        shell.set_hook('pre_run_code_hook', self.auto_magics.pre_run_code_hook)
 
 
 _loaded = False

IPython/extensions/tests/test_autoreload.py

@@ -9,7 +9,7 b' from StringIO import StringIO'
 import nose.tools as nt
 import IPython.testing.tools as tt
 
-from IPython.extensions.autoreload import AutoreloadInterface
+from IPython.extensions.autoreload import AutoreloadPlugin
 from IPython.core.hooks import TryNext
 
 #-----------------------------------------------------------------------------
@@ -19,11 +19,11 b' from IPython.core.hooks import TryNext'
 class FakeShell(object):
     def __init__(self):
         self.ns = {}
-        self.reloader = AutoreloadInterface()
+        self.reloader = AutoreloadPlugin(shell=get_ipython())
 
     def run_code(self, code):
         try:
-            self.reloader.pre_run_code_hook(self)
+            self.reloader.auto_magics.pre_run_code_hook(self)
         except TryNext:
             pass
         exec code in self.ns
@@ -32,10 +32,10 b' class FakeShell(object):'
         self.ns.update(items)
 
     def magic_autoreload(self, parameter):
-        self.reloader.magic_autoreload(self, parameter)
+        self.reloader.auto_magics.autoreload(parameter)
 
     def magic_aimport(self, parameter, stream=None):
-        self.reloader.magic_aimport(self, parameter, stream=stream)
+        self.reloader.auto_magics.aimport(parameter, stream=stream)
 
 
 class Fixture(object):
@@ -160,7 +160,7 b" class Bar: # old-style class: weakref doesn't work for it on Python < 2.7"
             self.shell.magic_aimport("", stream=stream)
             nt.assert_true("Modules to reload:\nall-except-skipped" in
                            stream.getvalue())
-        nt.assert_true(mod_name in self.shell.ns)
+        nt.assert_in(mod_name, self.shell.ns)
 
         mod = sys.modules[mod_name]