[modules] Explicitly keep track of module requests.

src/objects.h

 // Copyright 2015 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_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 #include <memory>
 
@@ skipping 4554 matching lines @@
     kModuleRequestIndex,
     kLength
   };
 };
 
 // ModuleInfo is to ModuleDescriptor what ScopeInfo is to Scope.
 class ModuleInfo : public FixedArray {
  public:
   DECLARE_CAST(ModuleInfo)
   static Handle<ModuleInfo> New(Isolate* isolate, ModuleDescriptor* descr);
+  inline FixedArray* module_requests() const;
   inline FixedArray* special_exports() const;
   inline FixedArray* regular_exports() const;
 
 #ifdef DEBUG
   inline bool Equals(ModuleInfo* other) const;
 #endif
 
  private:
   friend class Factory;
-  enum { kSpecialExportsIndex, kRegularExportsIndex, kLength };
+  enum {
+    kModuleRequestsIndex,
+    kSpecialExportsIndex,
+    kRegularExportsIndex,
+    kLength
+  };
 };
 
 // The cache for maps used by normalized (dictionary mode) objects.
 // Such maps do not have property descriptors, so a typical program
 // needs very limited number of distinct normalized maps.
 class NormalizedMapCache: public FixedArray {
  public:
   static Handle<NormalizedMapCache> New(Isolate* isolate);
 
   MUST_USE_RESULT MaybeHandle<Map> Get(Handle<Map> fast_map,
@@ skipping 6710 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_