Adds new abstraction `Compiler` with methods
`compileComponentAsync` and `compileComponentSync`.
This is in preparation of deprecating `ComponentResolver`.
`compileComponentSync` is able to compile components
synchronously given all components either have an inline
template or they have been compiled before.
Also changes `TestComponentBuilder.createSync` to
take a `Type` and use the new `compileComponentSync` method.
Also supports overriding the component metadata even if
the component has already been compiled.
Also fixes#7084 in a better way.
BREAKING CHANGE:
`TestComponentBuilder.createSync` now takes a component type
and throws if not all templates are either inlined
are compiled before via `createAsync`.
Closes#9594
TestComponentBuilder now lives in core/testing. compiler/testing contains a private
OverridingTestComponentBuilder implementation which handles the private behavior
we need to override templates. This is part of the effort to simplify the testing
imports and hide compiler APIs.
Closes#9585
BREAKING CHANGE:
`TestComponentBuilder` is now imported from `@angular/core/testing`. Imports
from `@angular/compiler/testing` are deprecated.
Before:
```
import {TestComponentBuilder, TestComponentRenderer, ComponentFixtureAutoDetect} from '@angular/compiler/testing';
```
After:
```
import {TestComponentBuilder, TestComponentRenderer, ComponentFixtureAutoDetect} from '@angular/core/testing';
```
BREAKING CHANGE:
`ComponentFixture` will be moving out of `@angular/compiler/testing` to `@angular/core/testing` in
this release. For now, it is deprecated from `@angular/compiler/testing`.