[turbofan] Optimize typeof in abstract/strict equality comparison.

src/compiler/js-typed-lowering.h

Index: src/compiler/js-typed-lowering.h
diff --git a/src/compiler/js-typed-lowering.h b/src/compiler/js-typed-lowering.h
index 151787106b2b1227e75a9c6fb5fe7ab064e05cdb..8733e6c7818cf7bcd657d5f7e0c3f3bedbe2ae86 100644
--- a/src/compiler/js-typed-lowering.h
+++ b/src/compiler/js-typed-lowering.h
@@ -59,6 +59,7 @@ class JSTypedLowering final : public AdvancedReducer {
   Reduction ReduceJSInstanceOf(Node* node);
   Reduction ReduceJSLoadContext(Node* node);
   Reduction ReduceJSStoreContext(Node* node);
+  Reduction ReduceJSEqualTypeOf(Node* node, bool invert);
   Reduction ReduceJSEqual(Node* node, bool invert);
   Reduction ReduceJSStrictEqual(Node* node, bool invert);
   Reduction ReduceJSToBoolean(Node* node);