[modules] Do basic linking.

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index 33c9bb870f26a176ab51f790ffb36e1af764e50d..534d8a55411c5ef0793492901dad3a345302b776 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -7961,6 +7961,14 @@ Object* ModuleInfoEntry::module_request() const {
   return get(kModuleRequestIndex);
 }
 
+ModuleInfo* Module::info() const {
+  DisallowHeapAllocation no_gc;
+  SharedFunctionInfo* shared = code()->IsSharedFunctionInfo()
+                                   ? SharedFunctionInfo::cast(code())
+                                   : JSFunction::cast(code())->shared();
+  return shared->scope_info()->ModuleDescriptorInfo();
+}
+
 FixedArray* ModuleInfo::module_requests() const {
   return FixedArray::cast(get(kModuleRequestsIndex));
 }