[CLEANUP beta] Remove Store deprecations

[wecc]

Contribute to open source, they said.

It'll be fun, they said.

Closes #3223

[wecc]

Failing on emberchannel beta, investigating...

[wecc]

Ember.isArray is now an alias of Array.isArray from what I can see in emberjs/ember.js#11463

This seem to cause stuff like this to fail:

author.set('posts', store.peekAll('post'));

...because Ember.isArray returns false for RecordArrays (previously it returned true for objects that "appears to be array-like"). That's why some tests fails on Ember beta and canary.

We can use store.peekAll('post').toArray() but maybe there's a better, and public, way to do this?

ping @stefanpenner

[bmac]

I like the idea of keeping asserts for the old store.find usages so people copy and pasting old code get a helpful error message.

[bmac]

@wecc did you ever make any progress on the Array.isArray stuff?

[wecc]

@bmac no, I'm unsure on how to continue

[bmac]

Lets give Ember Data an internal helper function called isArrayLike that implements the old Ember.isArray behavior?

[wecc]

Works for me! I'll get to it.

[wecc]

@bmac should be ready to 🚢

[bmac]

💃

[igorT]

❤️