commit f820a57655a3b5712825de91bf9d95b9d88e84bf
author Yohann Roussel <yroussel@google.com> Wed May 31 20:25:51 2017 +0200
committer Yohann Roussel <yroussel@google.com> Wed May 31 20:25:51 2017 +0200
tree fccd747374738a0899f01def3e9345551f7ec9a0
parent 76bd52335b8bb4a647c5adea3b913dbf35c4fe66

Add support for tracing main dex classes in R8

In addition to the given main dex list, allow to handle tracing rules
for calculating the list of classes required to be kept in the main dex
regarding legacy MultiDex constraints. Main dex list and constraints
tracing are not excliusive, when both are provided their class lists are
just merged. Runtime annotations with enum values are taken into account
precisely (if classpath is complete) and Annotations without enum are
not forced into the main dex so as classes annotated by them.

In this first step support is only added to R8.
In R8, When tree shaking and legacy main dex tracing are enabled together,
the assumption is made that tree shaking is keeping every classes with
code involved in secondary dex files installation. This allows to let tree
shaking reuse the tracing made for the main dex list instead of restarting
from scratch.

This change also introduces CompilationResult as an internal result allowing
easier inspection by tests. CompilationResult is not returned by public
R8/D8 methods.

Sources of new multidex tests are modified versions of some Jack tests.

Bug: 37772111
Change-Id: I7b741ace5a990a66cd4b991197de409c795e7d95