Fix use-after-free on annotation parse error

There's a mistake in 442cacfc96f69adce7b55bd28cf07a75fbcb4b65 and
55db811ed457f4e5df791a0c9e3ea545b81b687f.
It missed to set $$ when AidlAnnotation::Parse fails. When $$ is not
set, it points to the first component of the rule ($1) which is deleted.

Bug: 201125993, 201125843
Test: aidl_unittests
Change-Id: Ib5e78b3fcfb4972d31c05065ef5c946a24a8e77c
2 files changed