Revert "Revert "Add JIT""

Added missing EntryPointToCodePointer.

This reverts commit a5ca888d715cd0c6c421313211caa1928be3e399.

Change-Id: Ia74df0ef3a7babbdcb0466fd24da28e304e3f5af
diff --git a/runtime/debugger.cc b/runtime/debugger.cc
index 13bbdeb..c0dd197 100644
--- a/runtime/debugger.cc
+++ b/runtime/debugger.cc
@@ -287,6 +287,13 @@
     Dbg::PostException(throw_location, catch_method, catch_dex_pc, exception_object);
   }
 
+  // We only care about how many backward branches were executed in the Jit.
+  void BackwardBranch(Thread* /*thread*/, mirror::ArtMethod* method, int32_t dex_pc_offset)
+      OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
+    LOG(ERROR) << "Unexpected backward branch event in debugger " << PrettyMethod(method)
+               << " " << dex_pc_offset;
+  }
+
  private:
   DISALLOW_COPY_AND_ASSIGN(DebugInstrumentationListener);
 } gDebugInstrumentationListener;