Problem:
for code like
````
fn main() {
println!("Hello, world!");
}
````
clippy will issue a warning to use a clippy.toml option instead:
````
warning: lint `clippy::wrong_pub_self_convention` has been removed: set the `avoid_breaking_exported_api` config option to `false` to enable the `wrong_self_convention` lint for public items
--> src/main.rs:2:9
|
2 | #![warn(clippy::wrong_pub_self_convention)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: `#[warn(renamed_and_removed_lints)]` on by default
````
But using the lint name as seen in the warning message
echo "avoid_breaking_exported_api = true\n" > clippy.toml
Will cause an error:
````
error: error reading Clippy's configuration file `/tmp/clippytest/clippy.toml`: unknown field `avoid_breaking_exported_api`, expected one of `avoid-breaking-exported-api`, ...
````
Replace the underscores with dashes in the deprecation message.
changelog: avoid_breaking_exported_api: suggest correct clippy config toml option in the deprecation message
Deprecate `filter_map`
Since #6591, `filter_map` does not even lint `filter().map()`. The cases that are still linted make no sense IMO. So this just removes/deprecates it.
changelog: Deprecate `filter_map` lint
Closes#3424Fixes#7050
Fix Deprecated lints don't expand
### Move doc comments inside of declare_deprecated_lint macros so that they are picked up by lintlib.py
### fixes#4748
Unable to `cargo test` locally (I'm on NixOS, and keep getting errors that are similar to those #4714 might solve) but I have verified that all deprecated lints can now be expanded like other lints.
![2019-10-30_21:06:28](https://user-images.githubusercontent.com/1847524/67910501-5815de00-fb59-11e9-9fa2-91fe6a8b9bb9.png)
changelog: Show deprecated lints in lint documentation again