[turbofan] Lower abstract equality of boolean values.

src/compiler/js-typed-lowering.cc

Index: src/compiler/js-typed-lowering.cc
diff --git a/src/compiler/js-typed-lowering.cc b/src/compiler/js-typed-lowering.cc
index 06d2902020fc6e8308e4c18e8b3510758c6f2517..1f81d8ab31151667e3e152adfbba0f42f1762a6b 100644
--- a/src/compiler/js-typed-lowering.cc
+++ b/src/compiler/js-typed-lowering.cc
@@ -596,13 +596,16 @@ Reduction JSTypedLowering::ReduceJSEqual(Node* node, bool invert) {
     return r.ChangeToStringComparisonOperator(simplified()->StringEqual(),
                                               invert);
   }
+  if (r.BothInputsAre(Type::Boolean())) {
+    return r.ChangeToPureOperator(simplified()->ReferenceEqual(Type::Boolean()),
+                                  invert);
+  }
   if (r.BothInputsAre(Type::Receiver())) {
     return r.ChangeToPureOperator(
         simplified()->ReferenceEqual(Type::Receiver()), invert);
   }
   // TODO(turbofan): js-typed-lowering of Equal(undefined)
   // TODO(turbofan): js-typed-lowering of Equal(null)
-  // TODO(turbofan): js-typed-lowering of Equal(boolean)
   return NoChange();
 }