don't error if it's not a React Component

unstated uses `this.setState` and we're getting false positives when using this rule.

Author: Kent C. Dodds

tests/lib/rules/no-access-state-in-setstate.js

@@ -207,5 +207,14 @@ ruleTester.run('no-access-state-in-setstate', rule, {
     errors: [{
       message: 'Use callback in setState when referencing the previous state.'
     }]
+  }, {
+    code: [
+      'class StateContainer extends Container {',
+      '  anything() {',
+      '    return this.setState({value: this.state.value + 1})',
+      '  }',
+      '};'
+    ].join('\n'),
+    parserOptions: parserOptions
   }]
 });