Rewrite of the config parsing code

* More precise spans in diagnostics
* Allow multiple diagnostics for each config value
* Ability to capture spans in the parsed config
* Easier support of `..` in lists
* Remove `clippy_utils` dependancy from `clippy_config`
* Multi-column support for long suggestion lists

Author: Jarcho

Cargo.toml

@@ -27,7 +27,6 @@ clippy_config = { path = "clippy_config" }
 clippy_lints = { path = "clippy_lints" }
 rustc_tools_util = { path = "rustc_tools_util", version = "0.4.2" }
 tempfile = { version = "3.3", optional = true }
-termize = "0.1"
 color-print = "0.3.4"
 anstream = "0.6.18"
 

book/src/development/adding_lints.md

@@ -466,7 +466,7 @@ pub struct ManualStrip {
 
 impl ManualStrip {
     pub fn new(conf: &'static Conf) -> Self {
-        Self { msrv: conf.msrv }
+        Self { msrv: conf.msrv.into() }
     }
 }
 ```

clippy_config/Cargo.toml

@@ -9,10 +9,10 @@ publish = false
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-clippy_utils = { path = "../clippy_utils" }
+arrayvec = { version = "0.7", default-features = false }
 itertools = "0.12"
-serde = { version = "1.0", features = ["derive"] }
-toml = "0.7.3"
+rustc-semver = "1.1"
+toml_edit = { version = "0.22.9", default-features = false, features = ["parse"] }
 
 [dev-dependencies]
 walkdir = "2.3"