-27 Attribute resolved to two different types
--28 (warning) Somehow there's a function marked override, and
- doesn't override anything. Warn that this method will be
- ignored during overload resolution. (marked override == in IL,
- it has a 'virtual', but no 'newslot')
+-28 (retired)
+
+-29 Use -option instead of --option: to move people to the new
+ command line handling.
+
+-30 This version of the runtime does not support making pinned local variables.
+ This code may cause errors on a runtime with a moving GC
+
+-31 Internal compiler error during the method emit phase.
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