[turbofan] Separate typed optimizations from JSTypedLowering.

src/compiler/pipeline.cc

Index: src/compiler/pipeline.cc
diff --git a/src/compiler/pipeline.cc b/src/compiler/pipeline.cc
index 7e574b6df85c284a2ed35c86928b5b0253e01143..87f795f88db54524b6c36f6a6e7c7e9a52f1ab4f 100644
--- a/src/compiler/pipeline.cc
+++ b/src/compiler/pipeline.cc
@@ -63,6 +63,7 @@
 #include "src/compiler/store-store-elimination.h"
 #include "src/compiler/tail-call-optimization.h"
 #include "src/compiler/type-hint-analyzer.h"
+#include "src/compiler/typed-optimization.h"
 #include "src/compiler/typer.h"
 #include "src/compiler/value-numbering-reducer.h"
 #include "src/compiler/verifier.h"
@@ -922,6 +923,12 @@ struct TypedLoweringPhase {
     JSTypedLowering typed_lowering(&graph_reducer, data->info()->dependencies(),
                                    typed_lowering_flags, data->jsgraph(),
                                    temp_zone);
+    TypedOptimization typed_optimization(
+        &graph_reducer, data->info()->dependencies(),
+        data->info()->is_deoptimization_enabled()
+            ? TypedOptimization::kDeoptimizationEnabled
+            : TypedOptimization::kNoFlags,
+        data->jsgraph());
     SimplifiedOperatorReducer simple_reducer(&graph_reducer, data->jsgraph());
     CheckpointElimination checkpoint_elimination(&graph_reducer);
     CommonOperatorReducer common_reducer(&graph_reducer, data->graph(),
@@ -931,6 +938,7 @@ struct TypedLoweringPhase {
     if (data->info()->is_deoptimization_enabled()) {
       AddReducer(data, &graph_reducer, &create_lowering);
     }
+    AddReducer(data, &graph_reducer, &typed_optimization);
     AddReducer(data, &graph_reducer, &typed_lowering);
     AddReducer(data, &graph_reducer, &simple_reducer);
     AddReducer(data, &graph_reducer, &checkpoint_elimination);