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This updates the DevTools protocol to send Wiz/ACX metadata in addition to Angular metadata. Fortunately we don't need to worry about backwards compatibility here (`framework` is required for example), but the design roughly mirrors `DirectiveDebugMetadata` in `@angular/core`.
Beyond that, this is mostly plumbing through an extra data slice in the form of `props` provided by Wiz. An earlier version implemented `events` as their own slice as well, but was removed as there is currently no generic way to disambiguate events from any other form of callback passed in as a prop. Instead, event callbacks are visualized as functions under the "Props" category.
Working with `DirectiveMetadata` as a union is unfortunately a bit annoying since it requires casting to more specific `{Angular,Acx,Wiz}DirectiveMetadata` types for TS to allow property access, even when the properties are optional anyways.
This commit is mostly for adding Wiz, but does add a bit of ACX functionality which is not fully tested.
PR Close #60475
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Angular DevTools UI
This module exports the Angular DevTools component. We render the DevToolsComponent within an Angular application running in Chrome or Firefox DevTools. This module of the application communicates with the Angular DevTools "backend".