Added component stack to contentEditable warning (#11208)

* Added component stack to contentEditable warning

* Added component stack to contentEditable warning

Author: Ethan-Arrowood

src/renderers/dom/shared/__tests__/ReactDOMComponent-test.js

@@ -1126,7 +1126,12 @@ describe('ReactDOMComponent', () => {
       spyOn(console, 'error');
       mountComponent({contentEditable: true, children: ''});
       expectDev(console.error.calls.count()).toBe(1);
-      expectDev(console.error.calls.argsFor(0)[0]).toContain('contentEditable');
+      expectDev(normalizeCodeLocInfo(console.error.calls.argsFor(0)[0])).toBe(
+        'Warning: A component is `contentEditable` and contains `children` ' +
+          'managed by React. It is now your responsibility to guarantee that ' +
+          'none of those nodes are unexpectedly modified or duplicated. This ' +
+          'is probably not intentional.\n    in div (at **)',
+      );
     });
 
     it('should respect suppressContentEditableWarning', () => {

src/renderers/dom/shared/utils/assertValidProps.js

@@ -13,6 +13,7 @@ var invariant = require('fbjs/lib/invariant');
 var voidElementTags = require('voidElementTags');
 
 if (__DEV__) {
+  var {getCurrentFiberStackAddendum} = require('ReactDebugCurrentFiber');
   var warning = require('fbjs/lib/warning');
 }
 
@@ -68,7 +69,8 @@ function assertValidProps(
       'A component is `contentEditable` and contains `children` managed by ' +
         'React. It is now your responsibility to guarantee that none of ' +
         'those nodes are unexpectedly modified or duplicated. This is ' +
-        'probably not intentional.',
+        'probably not intentional.%s',
+      getCurrentFiberStackAddendum() || '',
     );
   }
   invariant(