[turbofan] extend escape analysis to reduce CheckMaps

src/compiler/escape-analysis-reducer.h

Index: src/compiler/escape-analysis-reducer.h
diff --git a/src/compiler/escape-analysis-reducer.h b/src/compiler/escape-analysis-reducer.h
index 01c2ae118bbad23feb69d583c0697e1db4a32726..ff54d731b7d8d59fe180e075123d8405b69628c7 100644
--- a/src/compiler/escape-analysis-reducer.h
+++ b/src/compiler/escape-analysis-reducer.h
@@ -36,6 +36,7 @@ class V8_EXPORT_PRIVATE EscapeAnalysisReducer final
   Reduction ReduceNode(Node* node);
   Reduction ReduceLoad(Node* node);
   Reduction ReduceStore(Node* node);
+  Reduction ReduceCheckMaps(Node* node);
   Reduction ReduceAllocate(Node* node);
   Reduction ReduceFinishRegion(Node* node);
   Reduction ReduceReferenceEqual(Node* node);