Reverse the tuple item order in the utility code caching key to move the most...

Reverse the tuple item order in the utility code caching key to move the most selective item first (just in case if we ever get dict collisions).

Cython/Compiler/Code.py

@@ -408,7 +408,7 @@ class UtilityCodeBase(object):
         """
         Calls .load(), but using a per-type cache based on utility name and file name.
         """
-        key = (cls, from_file, utility_code_name)
+        key = (utility_code_name, from_file, cls)
         try:
             return __cache[key]
         except KeyError: