[turbofan] Pass deoptimization mode to intrinsic lowering.

test/unittests/compiler/js-intrinsic-lowering-unittest.cc

Index: test/unittests/compiler/js-intrinsic-lowering-unittest.cc
diff --git a/test/unittests/compiler/js-intrinsic-lowering-unittest.cc b/test/unittests/compiler/js-intrinsic-lowering-unittest.cc
index 7c561315b6485efa20a4cc1d790c9b0e50acae13..92b59d29270551d98bbb020f8e3d65c36d3e4860 100644
--- a/test/unittests/compiler/js-intrinsic-lowering-unittest.cc
+++ b/test/unittests/compiler/js-intrinsic-lowering-unittest.cc
@@ -35,7 +35,8 @@ class JSIntrinsicLoweringTest : public GraphTest {
     JSGraph jsgraph(isolate(), graph(), common(), javascript(), &machine);
     // TODO(titzer): mock the GraphReducer here for better unit testing.
     GraphReducer graph_reducer(graph(), zone());
-    JSIntrinsicLowering reducer(&graph_reducer, &jsgraph);
+    JSIntrinsicLowering reducer(&graph_reducer, &jsgraph,
+                                JSIntrinsicLowering::kDeoptimizationEnabled);
     return reducer.Reduce(node);
   }