Updates for all angular.io links to the new angular.dev domain. Additionally, adjustment to new resources where the equivalent does not exist on the new site (e.g. Tour of Heroes tutorial)
BREAKING CHANGE: deprecated `runExternalSchematicAsync` and `runSchematicAsync` methods have been removed in favor of `runExternalSchematic` and `runSchematic`.
G3 is now using RXJS version 7 which makes it possible for the CLI to also be updated to RXJS 7.
NB: this change does not remove all usages of the deprecated APIs.
Closes#24371
These async methods are a replacement for the Observable based `runSchematicAsync` and `runExternalSchematicAsync` methods.
DEPRECATED:
The Observable based `SchematicTestRunner.runSchematicAsync` and `SchematicTestRunner.runExternalSchematicAsync` method have been deprecated in favor of the Promise based `SchematicTestRunner.runSchematic` and `SchematicTestRunner.runExternalSchematic`.
BREAKING CHANGE:
With this change we remove the following deprecated APIs
- `TslintFixTask`
- `TslintFixTaskOptions`
**Note:** this only effects schematics developers.
BREAKING CHANGE
Deprecated `SchematicTestRunner.runSchematic` and `SchematicTestRunner.runExternalSchematic` have been removed. Use `SchematicTestRunner.runSchematicAsync` or `SchematicTestRunner.runExternalSchematicAsync` instead.
Note: this change only effects direct `@angular-devkit/schematics` users and not the application developers.
All schematics can potentially be async. The synchronous test method variants (`runSchematic`/`runExternalSchematic`) will fail if the schematic, any of its rules, or any schematic it calls are async.
