fix(consistent-list-newline): ignore arrow functions with one arg

Author: antfu

src/rules/consistent-list-newline.test.ts

@@ -72,6 +72,20 @@ function TodoList() {
       },
     },
   },
+  `
+bar(
+  foo => foo
+    ? ''
+    : ''
+)
+    `,
+  `
+bar(
+  (ruleName, foo) => foo
+    ? ''
+    : ''
+)
+  `,
 ]
 
 // Check snapshot for fixed code

src/rules/consistent-list-newline.ts

@@ -194,6 +194,8 @@ export default createEslintRule<Options, MessageIds>({
         )
       },
       ArrowFunctionExpression: (node) => {
+        if (node.params.length <= 1)
+          return
         check(
           node,
           node.params,