fix(input-group): change method name

Author: didimmova

projects/igniteui-angular/src/lib/input-group/input-group.component.html

@@ -4,7 +4,7 @@
 
 <div class="igx-input-group__border" *ngIf="hasBorder"></div>
 
-<div class="igx-input-group__hint" (click)="onEvent($event)">
+<div class="igx-input-group__hint" (click)="hintClickHandler($event)">
     <ng-content select="igx-hint, [igxHint]"></ng-content>
 </div>
 

projects/igniteui-angular/src/lib/input-group/input-group.component.ts

@@ -184,7 +184,7 @@ export class IgxInputGroupComponent extends DisplayDensityBase
         }
     }
 
-    onEvent(event) {
+    hintClickHandler(event) {
         event.stopPropagation();
      }