Inlining support in optimizing.

Currently only inlines simple things that don't require an
environment, such as:
- Returning a constant.
- Returning a parameter.
- Returning an arithmetic operation.

Change-Id: Ie844950cb44f69e104774a3cf7a8dea66bc85661
diff --git a/compiler/optimizing/live_ranges_test.cc b/compiler/optimizing/live_ranges_test.cc
index 5c7e6f0..007c43e 100644
--- a/compiler/optimizing/live_ranges_test.cc
+++ b/compiler/optimizing/live_ranges_test.cc
@@ -36,9 +36,7 @@
   // Suspend checks implementation may change in the future, and this test relies
   // on how instructions are ordered.
   RemoveSuspendChecks(graph);
-  graph->BuildDominatorTree();
-  graph->TransformToSSA();
-  graph->AnalyzeNaturalLoops();
+  graph->TryBuildingSsa();
   // `Inline` conditions into ifs.
   PrepareForRegisterAllocation(graph).Run();
   return graph;