[modules] Give Module an internal [hash] field

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index 4e34116d130d5dcf2162be87e53abca67e4be4f6..926bba5efad288cd71ecc18f9e4e254ca285c5c9 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -5716,6 +5716,7 @@ ACCESSORS(Module, requested_modules, FixedArray, kRequestedModulesOffset)
 SMI_ACCESSORS(Module, flags, kFlagsOffset)
 BOOL_ACCESSORS(Module, flags, evaluated, kEvaluatedBit)
 ACCESSORS(Module, embedder_data, Object, kEmbedderDataOffset)
+SMI_ACCESSORS(Module, hash, kHashOffset)
 
 SharedFunctionInfo* Module::shared() const {
   return code()->IsSharedFunctionInfo() ? SharedFunctionInfo::cast(code())
@@ -5726,8 +5727,6 @@ ModuleInfo* Module::info() const {
   return shared()->scope_info()->ModuleDescriptorInfo();
 }
 
-uint32_t Module::Hash() const { return Symbol::cast(shared()->name())->Hash(); }
-
 ACCESSORS(AccessorPair, getter, Object, kGetterOffset)
 ACCESSORS(AccessorPair, setter, Object, kSetterOffset)