CanThrow() of HNewArray should return true.

Change-Id: I9950f1c391dfeb26cf59cee769705d01d8e283d5
diff --git a/compiler/optimizing/nodes.h b/compiler/optimizing/nodes.h
index 21ed350..da1468e 100644
--- a/compiler/optimizing/nodes.h
+++ b/compiler/optimizing/nodes.h
@@ -2307,6 +2307,9 @@
   // Calls runtime so needs an environment.
   bool NeedsEnvironment() const OVERRIDE { return true; }
 
+  // May throw NegativeArraySizeException, OutOfMemoryError, etc.
+  bool CanThrow() const OVERRIDE { return true; }
+
   bool CanBeNull() const OVERRIDE { return false; }
 
   QuickEntrypointEnum GetEntrypoint() const { return entrypoint_; }