Need to introduce the idea of multiple levels of visibility to support <java-symbol>.
Public, Private, Undefined.
Public means it is accessible from outside and requires an ID assigned.
Private means that we explicitly want this to be a symbol (show up in R.java), but not visible
to other packages. No ID required.
Undefined is any normal resource. When --private-symbols is specified in the link phase,
these resources will not show up in R.java.
Change-Id: Icba89221e08e685dee7683786aa7112baf28c856
An early refactor. Some ideas became clearer as
development continued. Now the various phases are much
clearer and more easily reusable.
Also added a ton of tests!
Change-Id: Ic8f0a70c8222370352e63533b329c40457c0903e
When a static library A references static library B,
and app C references both A and B, we get the following symbol merging,
symbols from library B get imported twice.
We must only check that symbol references to library B are valid
when building library A. We should only merge all the symbols
when building final app C.
Change-Id: I23cba33b0901dcbb5328d9c9dfaa6a979c073c36