Implement first kind of polymorphic inlining.

Add HClassTableGet to fetch an ArtMethod from the vtable or imt,
and compare it to the only method the profiling saw.

Change-Id: I76afd3689178f10e3be048aa3ac9a97c6f63295d
diff --git a/compiler/optimizing/inliner.h b/compiler/optimizing/inliner.h
index 8de510e..3c01751 100644
--- a/compiler/optimizing/inliner.h
+++ b/compiler/optimizing/inliner.h
@@ -85,6 +85,11 @@
                          bool same_dex_file,
                          bool do_rtp = true);
 
+  HInstanceFieldGet* BuildGetReceiverClass(ClassLinker* class_linker,
+                                           HInstruction* receiver,
+                                           uint32_t dex_pc) const
+    SHARED_REQUIRES(Locks::mutator_lock_);
+
   HGraph* const outermost_graph_;
   const DexCompilationUnit& outer_compilation_unit_;
   const DexCompilationUnit& caller_compilation_unit_;