Improve error message for non-exhaustive patterns#31020

Merged

bors merged 4 commits intorust-lang:masterfrom regexident:fix_16884

Jan 27, 2016

Commits on Jan 19, 2016

Commits on Jan 21, 2016

Refined error message to truncate at 3 and hint at number of hidden patterns for excessive cases.
regexident
committed

Commits on Jan 22, 2016

Adjusted PR to better match project's coding style.
regexident
committed