feat: make AngularSnapshotSerializer compatible with Ivy (#366)

also:
* update example app to Angular 9

example/package.json

@@ -9,32 +9,33 @@
     "test": "jest",
     "test:watch": "jest --watch",
     "test:ci": "jest --runInBand",
-    "test:coverage": "jest --coverage"
+    "test:coverage": "jest --coverage",
+    "postinstall": "ngcc"
   },
   "private": true,
   "dependencies": {
-    "@angular/animations": "~8.2.14",
-    "@angular/common": "~8.2.14",
-    "@angular/compiler": "~8.2.14",
-    "@angular/core": "~8.2.14",
-    "@angular/forms": "~8.2.14",
-    "@angular/platform-browser": "~8.2.14",
-    "@angular/platform-browser-dynamic": "~8.2.14",
-    "@angular/router": "~8.2.14",
-    "rxjs": "~6.4.0",
+    "@angular/animations": "~9.1.0",
+    "@angular/common": "~9.1.0",
+    "@angular/compiler": "~9.1.0",
+    "@angular/core": "~9.1.0",
+    "@angular/forms": "~9.1.0",
+    "@angular/platform-browser": "~9.1.0",
+    "@angular/platform-browser-dynamic": "~9.1.0",
+    "@angular/router": "~9.1.0",
+    "rxjs": "~6.5.4",
     "tslib": "^1.10.0",
-    "zone.js": "~0.9.1"
+    "zone.js": "~0.10.2"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "~0.803.25",
-    "@angular/cli": "~8.3.25",
-    "@angular/compiler-cli": "~8.2.14",
-    "@angular/language-service": "~8.2.14",
+    "@angular-devkit/build-angular": "~0.901.0",
+    "@angular/cli": "~9.1.0",
+    "@angular/compiler-cli": "~9.1.0",
+    "@angular/language-service": "~9.1.0",
     "@types/jest": "^25.1.1",
     "@types/node": "^11.0.0",
     "jest": "^25.1.0",
     "jest-preset-angular": "file:../",
     "ts-node": "^8.0.3",
-    "typescript": "~3.5.3"
+    "typescript": "~3.7.5"
   }
 }

example/src/app/__snapshots__/app.component.spec.ts.snap

@@ -2,29 +2,30 @@
 
 exports[`AppComponent snaps 1`] = `
 <app-root
+  __ngContext__={[Function LRootView]}
   hasClass={[Function Boolean]}
   title={[Function String]}
   variableWithPrecedingDolar={[Function Number]}
 >
   <h1
-    class="ng-tns-c1-0"
+    class="ng-tns-c11-0"
   >
      app works! 
     <app-calc
-      class="ng-tns-c1-0"
+      class="ng-tns-c11-0"
     />
     <span
-      class="ng-tns-c1-0"
+      class="ng-tns-c11-0"
     >
       aaa $1234
     </span>
-    
     <span
-      class="ng-tns-c1-0 ng-star-inserted"
+      class="ng-tns-c11-0 ng-star-inserted"
       style=""
     >
       ddd
     </span>
+    
      \`test'chars""
   
   </h1>

example/src/app/app.component.spec.ts

@@ -1,6 +1,6 @@
 import { NoopAnimationsModule } from '@angular/platform-browser/animations';
 import { async, fakeAsync, tick, ComponentFixture } from '@angular/core/testing';
-import { NO_ERRORS_SCHEMA } from '@angular/core';
+import { NO_ERRORS_SCHEMA, ɵivyEnabled as ivyEnabled } from '@angular/core';
 
 import { ConfigureFn, configureTests } from '@lib/testing';
 
@@ -26,6 +26,10 @@ describe('AppComponent', () => {
     });
   }));
 
+  it('Ivy should be enabled', () => {
+    expect(ivyEnabled).toBeTruthy();
+  });
+
   it('should create the app', async(() => {
     const app = component;
     expect(app).toBeTruthy();

example/src/app/calc/__snapshots__/calc.component.spec.ts.snap

@@ -2,6 +2,7 @@
 
 exports[`CalcComponent should snap 1`] = `
 <app-calc
+  __ngContext__={[Function LRootView]}
   hasAClass="false"
   image={[Function String]}
   prop1={[Function Number]}

example/src/app/medium/__snapshots__/medium.component.spec.ts.snap

@@ -2,14 +2,14 @@
 
 exports[`MediumComponent snapshot test 1`] = `
 <app-medium
+  __ngContext__={[Function LRootView]}
   anotherVar="false"
   someVar={[Function Boolean]}
 >
   <div
     class="some-wrapper-class"
   >
      diary works! 
-    
     <div
       class="inner-class"
     >
@@ -21,6 +21,7 @@ exports[`MediumComponent snapshot test 1`] = `
         some html
       </span>
     </div>
+    
     <div>
       one more case case
     </div>

example/src/app/ng-reflect-as-text/__snapshots__/ng-reflect-as-text.component.spec.ts.snap

@@ -1,7 +1,9 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
 exports[`NgReflectAsTextComponent snapshots 1`] = `
-<app-ng-reflect-as-text>
+<app-ng-reflect-as-text
+  __ngContext__={[Function LRootView]}
+>
   <p
     data-some-attr="ng-reflect-as-attr-arg works"
   >

example/src/app/on-push/__snapshots__/on-push.component.spec.ts.snap

@@ -2,29 +2,30 @@
 
 exports[`OnPushComponent should reflect toppings @Input() via *ngFor 1`] = `
 <app-on-push
+  __ngContext__={[Function LRootView]}
   name={[Function String]}
   toppings={[Function Array]}
 >
   <h3>
     Chilli pizza
   </h3><ul>
-    
     <li>
       first
     </li>
+    
   </ul>
 </app-on-push>
 `;
 
 exports[`OnPushComponent should reflect toppings @Input() via *ngFor 2`] = `
 <app-on-push
+  __ngContext__={[Function LRootView]}
   name={[Function String]}
   toppings={[Function Array]}
 >
   <h3>
     Chilli pizza
   </h3><ul>
-    
     <li>
       anchovy
     </li>
@@ -34,12 +35,14 @@ exports[`OnPushComponent should reflect toppings @Input() via *ngFor 2`] = `
     <li>
       chili
     </li>
+    
   </ul>
 </app-on-push>
 `;
 
 exports[`OnPushComponent should snapshot pizza name @Input 1`] = `
 <app-on-push
+  __ngContext__={[Function LRootView]}
   name={[Function String]}
   toppings={[Function Array]}
 >

example/src/app/simple-with-styles/__snapshots__/simple-with-styles.component.spec.ts.snap

@@ -1,7 +1,9 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
 exports[`SimpleWithStylesComponent should generate snapshot without nghost/ngcontent 1`] = `
-<app-simple-with-styles>
+<app-simple-with-styles
+  __ngContext__={[Function LRootView]}
+>
   <p>
      simple-with-styles works!
   

example/src/app/simple/__snapshots__/simple.component.spec.ts.snap

@@ -2,7 +2,7 @@
 
 exports[`SimpleComponent snapshot on nativeElement should be without ng-version 1`] = `
 <div
-  id="root2"
+  id="root-ng-internal-isolated-2"
 >
   <p>
      simple works!
@@ -12,7 +12,9 @@ exports[`SimpleComponent snapshot on nativeElement should be without ng-version
 `;
 
 exports[`SimpleComponent snapshots 1`] = `
-<app-simple>
+<app-simple
+  __ngContext__={[Function LRootView]}
+>
   <p>
      simple works!