Manish Goregaokar 4647d89205 Rollup merge of #22364 - Manishearth:rfc-572-forbid-attr, r=nikomatsakis
fixes #22203

r? @nikomatsakis

This breaks code that might be using attributes randomly, so it's technically a

[breaking-change]
2015-02-17 17:33:19 +05:30
..