Use react-is checks

Author: timdorr

src/components/connectAdvanced.js

@@ -1,7 +1,11 @@
 import hoistStatics from 'hoist-non-react-statics'
 import invariant from 'invariant'
 import React, { Component, PureComponent } from 'react'
-import { isValidElementType } from 'react-is'
+import {
+  isValidElementType,
+  isContextConsumer,
+  isContextProvider
+} from 'react-is'
 
 import { ReactReduxContext } from './Context'
 
@@ -215,8 +219,8 @@ export default function connectAdvanced(
       render() {
         const ContextToUse =
           this.props.context &&
-          this.props.context.Provider &&
-          this.props.context.Consumer
+          isContextProvider(this.props.context.Provider) &&
+          isContextConsumer(this.props.context.Consumer)
             ? this.props.context
             : Context