Minor tweaks

crates/ruff/src/checkers/ast.rs

@@ -4200,8 +4200,8 @@ impl<'a> Checker<'a> {
 
         let scope = self.current_scope();
         let binding = if let Some(index) = scope.bindings.get(&name) {
-            let b = &self.bindings[*index];
-            match &b.kind {
+            let existing = &self.bindings[*index];
+            match &existing.kind {
                 BindingKind::Builtin => {
                     // Avoid overriding builtins.
                     binding
@@ -4210,17 +4210,17 @@ impl<'a> Checker<'a> {
                     // If the original binding was a global or nonlocal, and the new binding conflicts within
                     // the current scope, then the new binding is also as the same.
                     Binding {
-                        runtime_usage: b.runtime_usage,
-                        synthetic_usage: b.synthetic_usage,
-                        typing_usage: b.typing_usage,
+                        runtime_usage: existing.runtime_usage,
+                        synthetic_usage: existing.synthetic_usage,
+                        typing_usage: existing.typing_usage,
                         kind: kind.clone(),
                         ..binding
                     }
                 }
                 _ => Binding {
-                    runtime_usage: b.runtime_usage,
-                    synthetic_usage: b.synthetic_usage,
-                    typing_usage: b.typing_usage,
+                    runtime_usage: existing.runtime_usage,
+                    synthetic_usage: existing.synthetic_usage,
+                    typing_usage: existing.typing_usage,
                     ..binding
                 },
             }

crates/ruff/src/linter.rs

@@ -203,7 +203,7 @@ pub fn check_path(
         || settings
             .rules
             .iter_enabled()
-            .any(|rule_code| rule_code.lint_source().is_no_qa())
+            .any(|rule_code| rule_code.lint_source().is_noqa())
     {
         check_noqa(
             &mut diagnostics,

crates/ruff/src/registry.rs

@@ -767,7 +767,7 @@ pub enum LintSource {
     LogicalLines,
     Tokens,
     Imports,
-    NoQa,
+    Noqa,
     Filesystem,
 }
 
@@ -776,7 +776,7 @@ impl Rule {
     /// physical lines).
     pub const fn lint_source(&self) -> &'static LintSource {
         match self {
-            Rule::UnusedNOQA => &LintSource::NoQa,
+            Rule::UnusedNOQA => &LintSource::Noqa,
             Rule::BlanketNOQA
             | Rule::BlanketTypeIgnore
             | Rule::DocLineTooLong