Bypass alternative API check in hidden API processing

Using @link in the publicAlternatives property of the
UnsupportedAppUsage annotation caused the hidden API processing to
check that it references a member of the public API. That breaks hidden
API modularization as the alternatives are not in the API provided by
ART and the other APIs are not usable here.

This change temporarily switches from @link to @code to bypass that
check for these references to allow progress to be made on the hidden
API modularization work.

Bug: 187693462
Bug: 179354495
Test: m droid
Change-Id: I8828c0d9db57bd8630730c9bd69b8b30afdf8d61
1 file changed