PM: Restrict subclass construction.

Don't construct a random class just because you were asked to.

Bug: 373467684
Test: atest PackageParsingPerfTest
Flag: EXEMPT bugfix
(cherry picked from commit 65c1a90)
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:cfd0ded301a5848b9b2caedb44878ae6ff0a7456)
Merged-In: I328eca7b8de1eab637e3991adeb2e1d147c30268
Change-Id: I328eca7b8de1eab637e3991adeb2e1d147c30268

Author: smore-lore

core/java/android/content/pm/PackageParser.java

@@ -7764,6 +7764,10 @@ private static <T extends IntentInfo> ArrayList<T> createIntentsList(Parcel in)
             final ArrayList<T> intentsList;
             try {
                 final Class<T> cls = (Class<T>) Class.forName(componentName);
+                if (!IntentInfo.class.isAssignableFrom(cls)) {
+                    throw new AssertionError("Intent list requires subclass of IntentInfo, not: "
+                            + componentName);
+                }
                 final Constructor<T> cons = cls.getConstructor(Parcel.class);
 
                 intentsList = new ArrayList<>(N);