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/Android.mk b/compiler/Android.mk
index 18d6cf7..8bcc2f9 100644
--- a/compiler/Android.mk
+++ b/compiler/Android.mk
@@ -96,6 +96,7 @@
 	optimizing/graph_checker.cc \
 	optimizing/graph_visualizer.cc \
 	optimizing/gvn.cc \
+	optimizing/inliner.cc \
 	optimizing/instruction_simplifier.cc \
 	optimizing/locations.cc \
 	optimizing/nodes.cc \