* opt.ads: Comment fix.
* sem_cat.adb: Treat categorization errors as warnings in GNAT Mode.
* switch-c.adb: GNAT Mode does not set
Treat_Categorization_Errors_As_Warnings.
2010-10-26 Ed Schonberg <schonberg@adacore.com>
* sem_ch8.adb (Analyze_Subprogram_Renaming): Improve warning when an
operator renames another one with a different name.