Implement CFI for Optimizing.

CFI is necessary for stack unwinding in gdb, lldb, and libunwind.

Change-Id: I1a3480e3a4a99f48bf7e6e63c4e83a80cfee40a2
diff --git a/build/Android.gtest.mk b/build/Android.gtest.mk
index 62a11c2..d9d09bc 100644
--- a/build/Android.gtest.mk
+++ b/build/Android.gtest.mk
@@ -214,6 +214,7 @@
   compiler/optimizing/live_interval_test.cc \
   compiler/optimizing/live_ranges_test.cc \
   compiler/optimizing/nodes_test.cc \
+  compiler/optimizing/optimizing_cfi_test.cc \
   compiler/optimizing/parallel_move_test.cc \
   compiler/optimizing/pretty_printer_test.cc \
   compiler/optimizing/register_allocator_test.cc \