test(input): add test to reproduce a floating label bug

ionic/components/input/test/floating-labels/index.ts

@@ -6,6 +6,8 @@ import {App} from 'ionic/ionic';
 })
 class E2EApp {
   constructor() {
+    this.myParam = '';
+    
     this.myValues = {
       value1: 'Dynamic Input',
       value2: 'Dynamic Textarea'

ionic/components/input/test/floating-labels/main.html

@@ -3,6 +3,15 @@
 
 
 <ion-content>
+  <ion-row>
+    <ion-col>
+      <ion-item>
+        <ion-label floating>Params</ion-label>
+        <ion-input [(ngModel)]="myParam" type="text"></ion-input>
+        {{ myParam }}
+      </ion-item>
+    </ion-col>
+  </ion-row>
 
   <ion-list inset>