Add syntax for specifying C++ mapping for parcelables

This syntax is ignored for now (and will continue to be ignored by java).

Also, fix a minor glitch in line number counting.

Change-Id: I4c48aebe41f93374b225adc566bed6f8da398b58
Test: Unit tests
Bug: 23600712
Signed-off-by: Casey Dahlin <sadmac@google.com>
2 files changed