[compiler,modules] Introduce JS operators for module loads and stores.

src/compiler/js-operator.h

Index: src/compiler/js-operator.h
diff --git a/src/compiler/js-operator.h b/src/compiler/js-operator.h
index 0983d55d298d93e6ffe48f363696aee37d5a0464..61f15a2a3c41dd9fa7940ff8fe6c34445c08c9c3 100644
--- a/src/compiler/js-operator.h
+++ b/src/compiler/js-operator.h
@@ -502,6 +502,9 @@ class V8_EXPORT_PRIVATE JSOperatorBuilder final
   const Operator* LoadContext(size_t depth, size_t index, bool immutable);
   const Operator* StoreContext(size_t depth, size_t index);
 
+  const Operator* LoadModule(int32_t cell_index);
+  const Operator* StoreModule(int32_t cell_index);
+
   const Operator* TypeOf();
   const Operator* InstanceOf();