Proposal: Improving the IsString String instance

[Ian Lynagh]

On Sun, Aug 25, 2013 at 05:02:10PM -0400, Edward Kmett wrote:
> 
> The issue is that length "abc", splitAt 2 "abc", and dozens of other tools
> just stop working for anyone who turns on OverloadedStrings right now.

Would/could this be better addressed by changing
ghci/ExtendedDefaultRules such that the ambiguous uses would be
defaulted to String?


Thanks
Ian