Auto merge of #4403 - xd009642:type_repetition_improvements, r=phansch,flip1995

Improvements to `type_repetition_in_bounds`

Improvements to the `type_repetition_in_bounds` trait based on feedback from #4380 #4326 #4323

Currently just make it pedantic. Hopefully, more to come

Author: bors

clippy_lints/src/lib.rs

@@ -666,6 +666,7 @@ pub fn register_plugins(reg: &mut rustc_plugin::Registry<'_>, conf: &Conf) {
         replace_consts::REPLACE_CONSTS,
         shadow::SHADOW_UNRELATED,
         strings::STRING_ADD_ASSIGN,
+        trait_bounds::TYPE_REPETITION_IN_BOUNDS,
         types::CAST_POSSIBLE_TRUNCATION,
         types::CAST_POSSIBLE_WRAP,
         types::CAST_PRECISION_LOSS,
@@ -871,7 +872,6 @@ pub fn register_plugins(reg: &mut rustc_plugin::Registry<'_>, conf: &Conf) {
         swap::ALMOST_SWAPPED,
         swap::MANUAL_SWAP,
         temporary_assignment::TEMPORARY_ASSIGNMENT,
-        trait_bounds::TYPE_REPETITION_IN_BOUNDS,
         transmute::CROSSPOINTER_TRANSMUTE,
         transmute::TRANSMUTE_BYTES_TO_STR,
         transmute::TRANSMUTE_INT_TO_BOOL,
@@ -1058,7 +1058,6 @@ pub fn register_plugins(reg: &mut rustc_plugin::Registry<'_>, conf: &Conf) {
         reference::REF_IN_DEREF,
         swap::MANUAL_SWAP,
         temporary_assignment::TEMPORARY_ASSIGNMENT,
-        trait_bounds::TYPE_REPETITION_IN_BOUNDS,
         transmute::CROSSPOINTER_TRANSMUTE,
         transmute::TRANSMUTE_BYTES_TO_STR,
         transmute::TRANSMUTE_INT_TO_BOOL,

clippy_lints/src/trait_bounds.rs

@@ -24,7 +24,7 @@ declare_clippy_lint! {
     /// pub fn foo<T>(t: T) where T: Copy + Clone {}
     /// ```
     pub TYPE_REPETITION_IN_BOUNDS,
-    complexity,
+    pedantic,
     "Types are repeated unnecessary in trait bounds use `+` instead of using `T: _, T: _`"
 }
 

src/lintlist/mod.rs

@@ -1864,7 +1864,7 @@ pub const ALL_LINTS: [Lint; 310] = [
     },
     Lint {
         name: "type_repetition_in_bounds",
-        group: "complexity",
+        group: "pedantic",
         desc: "Types are repeated unnecessary in trait bounds use `+` instead of using `T: _, T: _`",
         deprecation: None,
         module: "trait_bounds",