ART: Make error messages for StackOverflow WARNINGs

Log error messages as LOG(WARNING). We'll throw either a (partial)
StackOverflow or OutOfMemoryError anyways.

Bug: 18713034
Change-Id: If51c0d6745b02f5ecb98b1387f8bde1e2e57e0c0
diff --git a/runtime/entrypoints/entrypoint_utils.cc b/runtime/entrypoints/entrypoint_utils.cc
index db51264..5ea9f70 100644
--- a/runtime/entrypoints/entrypoint_utils.cc
+++ b/runtime/entrypoints/entrypoint_utils.cc
@@ -198,7 +198,7 @@
   }
 
   if (!error_msg.empty()) {
-    LOG(ERROR) << error_msg;
+    LOG(WARNING) << error_msg;
     CHECK(self->IsExceptionPending());
   }