chore(*): Fis test with Ivy:false.

Author: MKirova

projects/igniteui-angular/src/lib/grids/hierarchical-grid/hierarchical-grid.spec.ts

@@ -1158,7 +1158,7 @@ describe('IgxHierarchicalGrid Runtime Row Island change Scenarios #hGrid', () =>
         expect(row.expander).not.toBe(undefined);
     }));
 
-    it('should allow changing row islands runtime in child grid.', () => {
+    it('should allow changing row islands runtime in child grid.', async() => {
         const row = hierarchicalGrid.getRowByIndex(0) as IgxHierarchicalRowComponent;
         UIInteractions.simulateClickAndSelectEvent(row.expander);
         fixture.detectChanges();
@@ -1174,6 +1174,8 @@ describe('IgxHierarchicalGrid Runtime Row Island change Scenarios #hGrid', () =>
 
         fixture.componentInstance.toggleChildRI = false;
         fixture.detectChanges();
+        await wait(30);
+        fixture.detectChanges();
 
         hGrids = fixture.debugElement.queryAll(By.css('igx-hierarchical-grid'));
         childGrid = hierarchicalGrid.hgridAPI.getChildGrids()[0];
@@ -1182,6 +1184,8 @@ describe('IgxHierarchicalGrid Runtime Row Island change Scenarios #hGrid', () =>
 
         fixture.componentInstance.toggleChildRI = true;
         fixture.detectChanges();
+        await wait(30);
+        fixture.detectChanges();
 
         hGrids = fixture.debugElement.queryAll(By.css('igx-hierarchical-grid'));
         childGrid = hierarchicalGrid.hgridAPI.getChildGrids()[0];