Fixed BUG#3339: Stored procedures in nonexistent schemas are uncallable.

Also added some related security tests and corrected related error messages.

mysql-test/t/sp-error.test

@@ -517,7 +517,6 @@ end case|
 call bug3287(2)|
 drop procedure bug3287|
 
-
 #
 # BUG#3297
 #
@@ -548,6 +547,13 @@ select @x|
 drop procedure bug3279|
 drop table t3|
 
+#
+# BUG#3339
+#
+--error 1049
+create procedure nodb.bug3339() begin end|
+
+
 drop table t1|
 
 delimiter ;|