Revert Hilt internal entry point and modules back to public to avoid …

…r8 optimization issues.

This CL is a partial rollback of changes made in CL/351213437 when introducing TestInstallIn. Making these classes pkg-private was mostly just a precaution. Making these public again should be fine since AggeregatedDepsProcessor prevents using TestInstallIn from replacing dagger.hilt modules.

See #2291

RELNOTES=Partially Fixes 2291: Reverts Hilt internal entry point and modules back to public to avoid r8 optimization issues. The full fix on our side (until r8 bug is fixed) will be to ship a proguard config that keeps the HiltWrapper_ classes. This will be done in a future release.
PiperOrigin-RevId: 353064986

java/dagger/hilt/android/internal/lifecycle/DefaultViewModelFactories.java

@@ -152,14 +152,14 @@ interface ActivityModule {
   /** The activity entry point to retrieve the factory. */
   @EntryPoint
   @InstallIn(ActivityComponent.class)
-  interface ActivityEntryPoint {
+  public interface ActivityEntryPoint {
     InternalFactoryFactory getHiltInternalFactoryFactory();
   }
 
   /** The fragment entry point to retrieve the factory. */
   @EntryPoint
   @InstallIn(FragmentComponent.class)
-  interface FragmentEntryPoint {
+  public interface FragmentEntryPoint {
     InternalFactoryFactory getHiltInternalFactoryFactory();
   }
 

java/dagger/hilt/android/internal/lifecycle/HiltViewModelFactory.java

@@ -46,9 +46,10 @@
  */
 public final class HiltViewModelFactory implements ViewModelProvider.Factory {
 
+  /** Hilt entry point for getting the multi-binding map of ViewModels. */
   @EntryPoint
   @InstallIn(ViewModelComponent.class)
-  interface ViewModelFactoriesEntryPoint {
+  public interface ViewModelFactoriesEntryPoint {
     @HiltViewModelMap
     Map<String, Provider<ViewModel>> getHiltViewModelMap();
   }