hg: move peerschemes back to schemes

This will avoid breaking things with extensions until peers are fully
separated from repos.

hgext/schemes.py

@@ -93,6 +93,6 b' def extsetup(ui):'
             and os.path.exists('%s:\\' % scheme)):
             raise util.Abort(_('custom scheme %s:// conflicts with drive '
                                'letter %s:\\\n') % (scheme, scheme.upper()))
-        hg.peerschemes[scheme] = ShortRepository(url, scheme, t)
+        hg.schemes[scheme] = ShortRepository(url, scheme, t)
 
     extensions.wrapfunction(util, 'hasdriveletter', hasdriveletter)

mercurial/hg.py

@@ -61,7 +61,7 b' def parseurl(path, branches=None):'
         u.fragment = None
     return str(u), (branch, branches or [])
 
-peerschemes = {
+schemes = {
     'bundle': bundlerepo,
     'file': _local,
     'http': httprepo,
@@ -73,7 +73,7 b' peerschemes = {'
 def _peerlookup(path):
     u = util.url(path)
     scheme = u.scheme or 'file'
-    thing = peerschemes.get(scheme) or peerschemes['file']
+    thing = schemes.get(scheme) or schemes['file']
     try:
         return thing(path)
     except TypeError: