Equality and inequality (== and !=) are now defined for struct and array
values, respectively, provided the elements of the data structures can
themselves be compared. See the Go 1 release notes for the details:
- http://weekly..golang.org/doc/go1.html#equality
+ http://weekly.golang.org/doc/go1.html#equality
The rune type is now an alias for int32 and character literals have the default
type of rune. Code that uses int where it should use rune will break.