Cache method lowering info in mir graph.

This should enable easy inlining checks. It should also
improve compilation time of methods that call the same
methods over and over - it is exactly such methods that
tend to exceed our 100ms time limit.

Change-Id: If01cd18e039071a74a1444570283c153429c9cd4
diff --git a/compiler/Android.mk b/compiler/Android.mk
index fdc8540..48e2bcd 100644
--- a/compiler/Android.mk
+++ b/compiler/Android.mk
@@ -51,6 +51,7 @@
 	dex/dex_to_dex_compiler.cc \
 	dex/mir_dataflow.cc \
 	dex/mir_field_info.cc \
+	dex/mir_method_info.cc \
 	dex/mir_optimization.cc \
 	dex/pass_driver.cc \
 	dex/bb_optimizations.cc \