Ensure binding the this to member methods is not an unnecessary this

Author: freaktechnik

README.md

@@ -108,6 +108,8 @@ const onlyEs = array.filter(function(char) {
 array.forEach(function(char) {
     this.log(char);
 }, console);
+
+array.filter(this.isGood, this);
 ```
 
 ## `array-func/recommended` Configuration

test/rules/no-unnecessary-this-arg.js

@@ -14,7 +14,8 @@ ruleTester.run('no-unnecessary-this-arg', rule, {
         'array.some((t) => t !== "a")',
         'Array.from(iterable, (t) => t.id)',
         'array.map(function(t) { return t.id; }, b)',
-        'Array.from(iterable, function(t) { return t.id; }, b)'
+        'Array.from(iterable, function(t) { return t.id; }, b)',
+        'array.filter(this.isGood, this)'
     ],
     invalid: [
         {