Implement instanceof in optimizing.

- Only fast-path for now: null or same class.
- Use pQuickInstanceofNonTrivial for slow path.

Change-Id: Ic5196b94bef792f081f3cb4d15157058e1381e6b
diff --git a/test/Android.run-test.mk b/test/Android.run-test.mk
index f74547b..ae8ff5e 100644
--- a/test/Android.run-test.mk
+++ b/test/Android.run-test.mk
@@ -440,6 +440,7 @@
   420-const-class \
   421-exceptions \
   421-large-frame \
+  422-instanceof \
   422-type-conversion \
   700-LoadArgRegs \
   701-easy-div-rem \