Container / Registry Reform #11440

Mix in to both `Application` and `ApplicationInstance` classes to provide consistent public access to their internally maintained registries.

Pass the related Application, which the instance can inspect to obtain the initialization data that it needs. This eliminates the need to set `applicationRegistry` on the instance, which was always an anti-pattern.

The `RegistryProxy` mixin now maintains the registry instance as `__registry__`. As appropriate, the equivalent `RegistryProxy` methods are called instead of directly accessing the `registry`.

Registry access must go through the Application now.

Now that container will be fully privatized, we can relax naming of members like `registry` that won't be accessed outside of the framework.

Mix in to `ApplicationInstance` class to provide public access to a few select methods on the encapsulated container.

Instead, allow the application's resolver to be invoked only as part of the fallback strategy for the application instance's registry. This has a couple benefits: * It allows registrations made in the app instance's registry to be resolved before falling back to the app's registry, rather than hitting the resolver beforehand. This is important for scenarios such as testing in which custom registrations need to take precedence over the resolver. * It is also more efficient in the case when the app's registry's registrations are used to resolve, because it avoids calling the same resolver twice before finally getting the registration. [Closes emberjs#11174]

* Ensure that `Container#_registry` remains supported for now. Can be deleted once cont/reg reform is enabled by default. * Continue to expose `registry` and `container` on `ApplicationInstance`. These can be removed once cont/reg reform is enabled, but we’ll still need to expose `ApplicationInstance.container.lookup` until 3.0. * Flag deprecation of Application initializer `initialize` arguments.

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Container / Registry Reform #11440

Container / Registry Reform #11440

Commits on Jul 23, 2015