move variable declarations out of the way of 2to3 in Py3.2

Cython/Compiler/Scanning.pxd

@@ -4,6 +4,8 @@ import cython
 
 from ..Plex.Scanners cimport Scanner
 
+cdef unicode any_string_prefix, IDENT
+
 cdef get_lexicon()
 cdef initial_compile_time_env()
 

Cython/Compiler/Scanning.py

@@ -7,7 +7,6 @@ from __future__ import absolute_import
 
 import cython
 cython.declare(make_lexicon=object, lexicon=object,
-               any_string_prefix=cython.unicode, IDENT=cython.unicode,
                print_function=object, error=object, warning=object,
                os=object, platform=object)