More inlining flags and tuned heuristics.

runtime/vm/flow_graph_optimizer.cc

Index: runtime/vm/flow_graph_optimizer.cc
diff --git a/runtime/vm/flow_graph_optimizer.cc b/runtime/vm/flow_graph_optimizer.cc
index c6afae0d04eb3a9bae7ea8f653823c647322639f..3b8ad6072ad3be2c9201cc8207d521fd73c07486 100644
--- a/runtime/vm/flow_graph_optimizer.cc
+++ b/runtime/vm/flow_graph_optimizer.cc
@@ -3661,14 +3661,17 @@ void ConstantPropagator::Transform() {
         ASSERT(branch->comparison()->IsStrictCompare());
         ASSERT(if_false->parallel_move() == NULL);
         ASSERT(if_false->loop_info() == NULL);
-        join =
-            new JoinEntryInstr(if_false->block_id(), if_false->try_index());
+        join = new JoinEntryInstr(if_false->block_id(),
+                                  if_false->try_index(),
+                                  if_false->loop_depth());
         next = if_false->next();
       } else if (!reachable_->Contains(if_false->preorder_number())) {
         ASSERT(branch->comparison()->IsStrictCompare());
         ASSERT(if_true->parallel_move() == NULL);
         ASSERT(if_true->loop_info() == NULL);
-        join = new JoinEntryInstr(if_true->block_id(), if_true->try_index());
+        join = new JoinEntryInstr(if_true->block_id(),
+                                  if_true->try_index(),
+                                  if_true->loop_depth());
         next = if_true->next();
       }