Merge pull request #6177 from IgniteUI/mkirova/upgrade-9rc-test

chore(*): Disable Ivy for the tests. Re-apply testbed re-use workaround.

Author: ChronosSF

projects/igniteui-angular/src/lib/test-utils/configure-suite.ts

@@ -8,10 +8,6 @@ import { resizeObserverIgnoreError } from './helper-utils.spec';
  */
 export const configureTestSuite = () => {
 
-  beforeAll(() => {
-    resizeObserverIgnoreError();
-  });
-  return;
 
   let originReset;
   beforeAll(() => {

projects/igniteui-angular/tsconfig.spec.json

@@ -9,6 +9,9 @@
       "hammerjs"
     ]
   },
+  "angularCompilerOptions": {
+    "enableIvy": false
+  },
   "files": [
     "src/test.ts"
   ],