[modules] Introduce v8::Module to the API and return it from CompileModule

src/objects-printer.cc

Index: src/objects-printer.cc
diff --git a/src/objects-printer.cc b/src/objects-printer.cc
index 1248f946eb96ba59ea5557bcbe77548c84294b8e..52bbcd5aca8d34bc0f9ab48635f93a4b901d22a9 100644
--- a/src/objects-printer.cc
+++ b/src/objects-printer.cc
@@ -1147,6 +1147,7 @@ void Box::BoxPrint(std::ostream& os) {  // NOLINT
 
 void Module::ModulePrint(std::ostream& os) {  // NOLINT
   HeapObject::PrintHeader(os, "Module");
+  os << "\n - code: " << Brief(code());
   os << "\n - exports: " << Brief(exports());
   os << "\n";
 }