Move shadow_unrelated to restriction

Author: camsteffen

clippy_lints/src/lib.rs

@@ -1060,6 +1060,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
         LintId::of(same_name_method::SAME_NAME_METHOD),
         LintId::of(shadow::SHADOW_REUSE),
         LintId::of(shadow::SHADOW_SAME),
+        LintId::of(shadow::SHADOW_UNRELATED),
         LintId::of(strings::STRING_ADD),
         LintId::of(strings::STRING_TO_STRING),
         LintId::of(strings::STR_TO_STRING),
@@ -1152,7 +1153,6 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
         LintId::of(redundant_else::REDUNDANT_ELSE),
         LintId::of(ref_option_ref::REF_OPTION_REF),
         LintId::of(semicolon_if_nothing_returned::SEMICOLON_IF_NOTHING_RETURNED),
-        LintId::of(shadow::SHADOW_UNRELATED),
         LintId::of(strings::STRING_ADD_ASSIGN),
         LintId::of(trait_bounds::TRAIT_DUPLICATION_IN_BOUNDS),
         LintId::of(trait_bounds::TYPE_REPETITION_IN_BOUNDS),

clippy_lints/src/shadow.rs

@@ -102,7 +102,7 @@ declare_clippy_lint! {
     /// let w = z; // use different variable name
     /// ```
     pub SHADOW_UNRELATED,
-    pedantic,
+    restriction,
     "rebinding a name without even using the original value"
 }