Add overrideSourcePosition to UnsupportedAppUsage.

This allows tools to know the original source position of the annotation
in cases where the java code is generated. It will be populated by the
AIDL compiler.

Bug: 145120552
Test: m
Change-Id: Ie5c1108ccb8417195f09d1ed61be4ce1f1c2282d
3 files changed