Previously, we were exporting internal mocks and helpers. Move these
to core/testing/testing_internal or remove them if they were
never used.
Remove deprecated items - injectAsync, clearPendingTimers.
BREAKING CHANGE:
Remove the following APIs from `@angular/core/testing`, which have been deprecated or were
never intended to be publicly exported:
```
injectAsync
clearPendingTimers
Log
MockAppliacationHref
MockNgZone
clearPendingTimers
getTypeOf
instantiateType
```
Instead of `injectAsync`, use `async(inject())`.
`clearPendingTimers` is no longer required.
Mostly, removing things that were never intended to be exported publicy.
BREAKING CHANGE:
The following are no longer publicly exported APIs. They were intended as internal
utilities and you should use your own util:
```
browserDetection,
dispatchEvent,
el,
normalizeCSS,
stringifyElement,
expect (and custom matchers for Jasmine)
```
Julie Ralph
ScottSWu
Alex Eagle
Victor Berchet
ScottSWu
Misko Hevery
Igor Minar