fix(ivy): *Def types are private (ɵ) symbols (#24738)

On accident a few of the definition types were emitted as public API
symbols. Much of the Ivy API surface is still prefixed with ɵ,
indicating it's a private API. The definition types should be private
for now.

PR Close #24738

packages/compiler-cli/src/ngtsc/transform/src/translator.ts

@@ -35,8 +35,8 @@ const CORE_SUPPORTED_SYMBOLS = new Set<string>([
   'ɵdefineNgModule',
   'inject',
   'InjectableDef',
-  'InjectorDef',
-  'NgModuleDef',
+  'ɵInjectorDef',
+  'ɵNgModuleDef',
 ]);
 
 export class ImportManager {