Fix codecs module escape functions

Author: msimacek

graalpython/lib-graalpython/_codecs.py

@@ -261,22 +261,22 @@ def unicode_internal_decode(obj, errors=None):
 
 @__graalpython__.builtin
 def raw_unicode_escape_encode(string, errors=None):
-    return __truffle_encode("raw_unicode_escape", string, errors)
+    return __truffle_encode(string, "raw_unicode_escape", errors)
 
 
 @__graalpython__.builtin
 def raw_unicode_escape_decode(string, errors=None):
-    return __truffle_decode("raw_unicode_escape", string, errors)
+    return __truffle_decode(string, "raw_unicode_escape", errors)
 
 
 @__graalpython__.builtin
 def unicode_escape_encode(string, errors=None):
-    return __truffle_encode("unicode_escape", string, errors)
+    return __truffle_encode(string, "unicode_escape", errors)
 
 
 @__graalpython__.builtin
 def unicode_escape_decode(string, errors=None):
-    return __truffle_decode("unicode_escape", string, errors)
+    return __truffle_decode(string, "unicode_escape", errors)
 
 
 @__graalpython__.builtin