Test for hasMany array removal on deletion

* [PERF] fix sub-optimal compiler output

given:

```js
let [a, b] = thing;
```

If it i...

[BUGFIX #4649 #4648]

* remove Ember.K usage from state/relationship.js

* Update relationship.js

* no longer invalid relationships property when accessing it the first time #4649
* no longer du...

build ember-data attribute debug info dynamically

cleanup system/many-array

[PERF] HasMany doesn't need to inform RecordArrayManager

* ensure shape is stable
* use tidier ES6 syntax when appropriate

At one point, relationships were managed by the recordArrayManager, this is no longer true. But ...

* allow other relationship types to be first-class and not crash the inspector
* improve tests

[DOC ds-extended-errors] Add docs for extended errors

chore(store): cleans up and optimizes code paths around fetching rela…

Naming cleanup

Assert when original and not normalized key is found in payload

Updates json-api-mock-server

Update the relationship docs to remove some references to a globals s…

[DOC] Mark `errorsHashToArray` and `errorsArrayToHash` public

[DOC] #4595 revise unloadAll description

Test assertions when updateRecord & deleteRecord don't exist on adapter

[FEATURE ds-serialize-id] add serializeId to json-serializer

[WARNING] Warn when extending JSONAPISerializer with extractMeta

Add better error messaging for adapters that do not implement createR…

tidy-up integration/filter-test

* use promises directly, rather then indirect async test helpers. QUnit now just supports them

Fixes #4618

Cleanup record array manager

Replace the values contained within content, rather then replacing content. Without this we:

* ...

* make the very private method more private \w underscore
* rename loadRecords to _setInternalMo...

* make adding/removing from recordArrays private
* make recordArray add/remove support batches
*...

* cleanup code
* move non-unit tests to integration folder

Don't notify belongsTo changes if nothing changed

Feat/improved cache

Assert that InternalModel is indeed not materialized on store._push

This methods are already present on the `DS` namespace, so this change
marks the officially as p...

[DOC] Minor changes to addon/serializer.js

Add examples to the Serializer API docs

[BUGFIX beta] Don't unnecessarily materialize records

Reduces the number of lookups, sets, expense of detection, allocations for fallbacks. Also inclu...

make DS.ManyArray lazy

[DOC] Improve warning for mismatched id in store.findRecord

[PERF] make internal model lazier

Fix dummy app serializer

We were not correctly deserializing relationships coming from the mock server,
because we try to...

This adds a `store#_push` method which returns DS.InternalModel's
instead of materialized DS.Mod...

[DOC] Add documentation for query#update() to refresh query

fix(instrumentation): heimdall-query needed bumped to work properly

Warn when findRecord returns a different id than the one requested

fix integration/record-array-test setup

Remove the ds-boolean-transform-allow-null feature flag

Cleanup record array manager

- allocations are now lazy
- InternalModel is now an ES2015 class, the expensive classCallCheck ...

* move to integration (as it is tests interaction between store/manager/array)
* remove unit tes...

* add unit tests
* fixup shape

* ensure filter function updates just before destroy are ignored
* add unit test coverage for wh...

* recordArray.invoke(‘createSnapshot’) was previously invoked on the result of `internal.getReco...

* leave note for future work, e.g. the cleanup that is happening should likely not happen.

* add tests
* remove unused feature of passing in an optional index to insert at

Revert "unloadRecord does not remove observers"

destroyed and observers removed

Update changelog for the Ember Data 2.9.0 release