[compiler][modules] Constant-fold the loads of module cells.

src/compiler/node-properties.h

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_NODE_PROPERTIES_H_
 #define V8_COMPILER_NODE_PROPERTIES_H_
 
 #include "src/compiler/node.h"
 #include "src/compiler/types.h"
 #include "src/globals.h"
@@ skipping 124 matching lines @@
     kNoReceiverMaps,         // No receiver maps inferred.
     kReliableReceiverMaps,   // Receiver maps can be trusted.
     kUnreliableReceiverMaps  // Receiver maps might have changed (side-effect).
   };
   static InferReceiverMapsResult InferReceiverMaps(
       Node* receiver, Node* effect, ZoneHandleSet<Map>* maps_return);
 
   // ---------------------------------------------------------------------------
   // Context.
 
-  // Try to retrieve the specialization context from the given {node},
-  // optionally utilizing the knowledge about the (outermost) function
-  // {context}.
-  static MaybeHandle<Context> GetSpecializationContext(
-      Node* node, MaybeHandle<Context> context = MaybeHandle<Context>());
-
   // Walk up the context chain from the given {node} until we reduce the {depth}
   // to 0 or hit a node that does not extend the context chain ({depth} will be
   // updated accordingly).
   static Node* GetOuterContext(Node* node, size_t* depth);
 
   // ---------------------------------------------------------------------------
   // Type.
 
   static bool IsTyped(Node* node) { return node->type() != nullptr; }
   static Type* GetType(Node* node) {
@@ skipping 10 matching lines @@
 
  private:
   static inline bool IsInputRange(Edge edge, int first, int count);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_NODE_PROPERTIES_H_