Android Q Preview 4 (QPP4.190502.018)
Implement getInterfaceVersion for C++

This change fixes a bug that getInterfaceVerison() is not implemented in
the stub class when --lang=cpp and --version is set.

Bug: 130195984
Test: m
Test: aidl_unittests

Change-Id: I2b107db8c47ef287ec2be736b6beb84768cb04e6
3 files changed