assertEquals(
        TypeToken.of(Object.class),
        TypeToken.of(Types.supertypeOf(String.class)).getGenericSuperclass());
    assertEquals(
        new TypeToken<Object>() {},
        TypeToken.of(Types.supertypeOf(String[].class)).getGenericSuperclass());
    assertEquals(
        new TypeToken<Object>() {},
        TypeToken.of(Types.supertypeOf(CharSequence.class)).getGenericSuperclass());
  }

    assertEquals(
        TypeToken.of(Object.class),
        TypeToken.of(Types.supertypeOf(String.class)).getGenericSuperclass());
    assertEquals(
        new TypeToken<Object>() {},
        TypeToken.of(Types.supertypeOf(String[].class)).getGenericSuperclass());
    assertEquals(
        new TypeToken<Object>() {},
        TypeToken.of(Types.supertypeOf(CharSequence.class)).getGenericSuperclass());
  }

      public <S extends Set<E>> S copyInto(S set) {
        set.addAll(set1);
        set.addAll(set2);
        return set;
      }

      @Override
      @SuppressWarnings({"nullness", "unchecked"}) // see supertype
      public ImmutableSet<@NonNull E> immutableCopy() {
        ImmutableSet.Builder<@NonNull E> builder =
            new ImmutableSet.Builder<@NonNull E>()
                .addAll((Iterable<@NonNull E>) set1)

}

func (c *typeConv) badCFType(dt *dwarf.TypedefType) bool {
	// The real bad types are CFNumberRef and CFDateRef.
	// Sometimes non-pointers are stored in these types.
	// CFTypeRef is a supertype of those, so it can have bad pointers in it as well.
	// We return true for the other *Ref types just so casting between them is easier.
	// We identify the correct set of types as those ending in Ref and for which