Fabric: Fixed missing text on some views with borders

Summary: Apparently, after updating CALayer props we have to request redrowing on top of it manually.

Reviewed By: mdvacca

Differential Revision: D10053340

fbshipit-source-id: f87311399bab809c9e13a3076f526bbe3f7f3fb4

React/Fabric/Mounting/ComponentViews/View/RCTViewComponentView.mm

@@ -420,6 +420,10 @@ - (void)invalidateLayer
     layer.cornerRadius = cornerRadius;
     layer.mask = maskLayer;
   }
+
+  // After updating `layer`'s parameters we have to redraw on top of it
+  // all custom content (calling `drawRect:` implemented in subclasses).
+  [layer setNeedsDisplay];
 }
 
 #pragma mark - Accessibility