bors 5dfb5adbac Auto merge of #4259 - Darth-Revan:origin/inherent_to_string, r=flip1995
Implement lint for inherent to_string() method.

Fixes #4247

changelog: Implement two new lints: `inherent_to_string` and `inherent_to_string_shadow_display`

1) Emits a warning if a type implements an inherent method `to_string(&self) -> String`
2) Emits an error if a type implements an inherent method `to_string(&self) -> String` and also implements the `Display` trait
2019-07-17 07:23:25 +00:00
..
2019-06-21 16:47:34 +02:00
2019-06-21 16:47:34 +02:00