[turbofan] Lower JSLoadMessage/JSStoreMessage earlier.

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 178b21e891fb32e3a3f2bd46518212fe0be1eeb9..20f35f1fe144c954665250ce45eec782c943c57b 100644
--- a/src/compiler/js-typed-lowering.h
+++ b/src/compiler/js-typed-lowering.h
@@ -73,6 +73,8 @@ class V8_EXPORT_PRIVATE JSTypedLowering final
   Reduction ReduceJSCallConstruct(Node* node);
   Reduction ReduceJSCallFunction(Node* node);
   Reduction ReduceJSForInNext(Node* node);
+  Reduction ReduceJSLoadMessage(Node* node);
+  Reduction ReduceJSStoreMessage(Node* node);
   Reduction ReduceJSGeneratorStore(Node* node);
   Reduction ReduceJSGeneratorRestoreContinuation(Node* node);
   Reduction ReduceJSGeneratorRestoreRegister(Node* node);