[Turbofan] run load elimination concurrently.

src/compiler/branch-elimination.cc

Index: src/compiler/branch-elimination.cc
diff --git a/src/compiler/branch-elimination.cc b/src/compiler/branch-elimination.cc
index b85e4737d13fc534e90e085e2a33c6898a31cbc7..e6714405aa8153227000d3c99325e06643f519fa 100644
--- a/src/compiler/branch-elimination.cc
+++ b/src/compiler/branch-elimination.cc
@@ -18,7 +18,9 @@ BranchElimination::BranchElimination(Editor* editor, JSGraph* js_graph,
       jsgraph_(js_graph),
       node_conditions_(zone, js_graph->graph()->NodeCount()),
       zone_(zone),
-      dead_(js_graph->graph()->NewNode(js_graph->common()->Dead())) {}
+      dead_(js_graph->graph()->NewNode(js_graph->common()->Dead())) {
+  NodeProperties::SetType(dead_, Type::None());
+}
 
 BranchElimination::~BranchElimination() {}