The upgrade package duplicaes some of code due to relative
imports between entry-points. This caused bundlers to
inline shared functions twice in both FESM outputs.
This is an acceptable limitation and we are not changing this
because the primary entry-point is not synced into G3. It's non-trivial
to remove these cross relative imports right now because the primary
entry-point is not even built in G3 so instead we just ignore the
relative imports using a re-export file.
Note: To simplify this change, we continue using namespace exports
as exporting individual named exports for all these possible usages
is rather cumbersome and also we had existing namespace imports for
e.g. `angular1.ts`. The code of upgrade is rarely edited these days
PR Close#51500
Previously, create_angular_testing_module would export a mutable `let`
binding. The binding is already exporting using an accessor function
though, so the export on the let variable seems like an accidental
oversight.
This is functionally equivalent, but makes it easier for module
optimizers such as Closure Compiler to track down side effects and prune
modules.
PR Close#34232
Adds two new helper functions that can be used when unit testing Angular services
that depend upon upgraded AngularJS services, or vice versa.
The functions return a module (AngularJS or NgModule) that is configured to wire up
the Angular and AngularJS injectors without the need to actually bootstrap a full
hybrid application.
This makes it simpler and faster to unit test services.
PR Close#16848
