fix: make all tests green with new view engine and JIT

Note that this does not yet include enabling the view engine
by default.

Included refactoring:
- view engine: split namespace of elements / attributes already
  when creating the `NodeDef`
- view engine: when injecting the old `Renderer`, use an implementation
  that is based on `RendererV2`
- view engine: store view queries in the component view, not
  on the host element

modules/@angular/core/test/linker/ng_container_integration_spec.ts

@@ -9,7 +9,6 @@
 
 import {AfterContentInit, AfterViewInit, Component, ContentChildren, Directive, Input, QueryList, ViewChildren} from '@angular/core';
 import {TestBed} from '@angular/core/testing';
-import {beforeEach, describe, it} from '@angular/core/testing/testing_internal';
 import {getDOM} from '@angular/platform-browser/src/dom/dom_adapter';
 import {expect} from '@angular/platform-browser/testing/matchers';
 

modules/@angular/core/test/linker/security_integration_spec.ts

@@ -8,7 +8,6 @@
 
 import {Component, Directive, HostBinding, Input, NO_ERRORS_SCHEMA} from '@angular/core';
 import {ComponentFixture, TestBed, getTestBed} from '@angular/core/testing';
-import {afterEach, beforeEach, describe, expect, iit, it} from '@angular/core/testing/testing_internal';
 import {getDOM} from '@angular/platform-browser/src/dom/dom_adapter';
 import {DomSanitizer} from '@angular/platform-browser/src/security/dom_sanitization_service';