feat(core): add initial view engine (#14014)

The new view engine allows our codegen to produce less code,
as it can interpret view definitions during runtime.

The view engine is not feature complete yet, but already
allows to implement a tree benchmark based on it.

Part of #14013

modules/benchmarks/e2e_test/tree_spec.ts

@@ -21,7 +21,30 @@ describe('tree benchmark spec', () => {
 
   it('should work for ng2 detect changes', () => {
     let params = [{name: 'depth', value: 4}];
-    openBrowser({url: 'all/benchmarks/src/tree/ng2/index.html'});
+    openBrowser({url: 'all/benchmarks/src/tree/ng2/index.html', params});
+    $('#detectChanges').click();
+    expect($('#numberOfChecks').getText()).toContain('10');
+  });
+
+  it('should work for ng2 next', () => {
+    testTreeBenchmark({
+      url: 'all/benchmarks/src/tree/ng2_next/index.html',
+      ignoreBrowserSynchronization: true,
+      // Can't use bundles as we use non exported code
+      extraParams: [{name: 'bundles', value: false}]
+    });
+  });
+
+  it('should work for ng2 next detect changes', () => {
+    let params = [
+      {name: 'depth', value: 4},
+      // Can't use bundles as we use non exported code
+      {name: 'bundles', value: false}
+    ];
+    openBrowser({
+      url: 'all/benchmarks/src/tree/ng2_next/index.html',
+      ignoreBrowserSynchronization: true, params
+    });
     $('#detectChanges').click();
     expect($('#numberOfChecks').getText()).toContain('10');
   });