Fix scanner index types on systems where size_t > long, namely Win64.

Cython/Plex/Scanners.pxd

@@ -35,10 +35,10 @@ cdef class Scanner:
     cdef tuple scan_a_token(self)
     cdef tuple position(self)
 
-    @cython.locals(cur_pos=long, cur_line=long, cur_line_start=long,
-                   input_state=long, next_pos=long, state=dict,
-                   buf_start_pos=long, buf_len=long, buf_index=long,
-                   trace=bint, discard=long, data=unicode, buffer=unicode)
+    @cython.locals(cur_pos=Py_ssize_t, cur_line=Py_ssize_t, cur_line_start=Py_ssize_t,
+                   input_state=long, next_pos=Py_ssize_t, state=dict,
+                   buf_start_pos=Py_ssize_t, buf_len=Py_ssize_t, buf_index=Py_ssize_t,
+                   trace=bint, discard=Py_ssize_t, data=unicode, buffer=unicode)
     cdef run_machine_inlined(self)
 
     cdef begin(self, state)