[modules] When debug-printing a module, print its origin if possible.

src/objects-printer.cc

 // Copyright 2012 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.
 
 #include "src/objects.h"
 
 #include <iomanip>
 #include <memory>
 
 #include "src/bootstrapper.h"
@@ skipping 1217 matching lines @@
   os << "\n - import_name: " << Brief(import_name());
   os << "\n - module_request: " << module_request();
   os << "\n - cell_index: " << cell_index();
   os << "\n - beg_pos: " << beg_pos();
   os << "\n - end_pos: " << end_pos();
   os << "\n";
 }
 
 void Module::ModulePrint(std::ostream& os) {  // NOLINT
   HeapObject::PrintHeader(os, "Module");
+  // TODO(neis): Simplify once modules have a script field.
+  if (!evaluated()) {
+    SharedFunctionInfo* shared = code()->IsSharedFunctionInfo()
+                                     ? SharedFunctionInfo::cast(code())
+                                     : JSFunction::cast(code())->shared();
+    Object* origin = Script::cast(shared->script())->GetNameOrSourceURL();
+    os << "\n - origin: " << Brief(origin);
+  }
   os << "\n - code: " << Brief(code());
   os << "\n - exports: " << Brief(exports());
   os << "\n - requested_modules: " << Brief(requested_modules());
-  os << "\n - evaluated: " << evaluated();
+  os << "\n - instantiated, evaluated: " << instantiated() << ", "
+     << evaluated();
   os << "\n";
 }
 
 void JSModuleNamespace::JSModuleNamespacePrint(std::ostream& os) {  // NOLINT
   JSObjectPrintHeader(os, this, "JSModuleNamespace");
   os << "\n - module: " << Brief(module());
   JSObjectPrintBody(os, this);
 }
 
 void PrototypeInfo::PrototypeInfoPrint(std::ostream& os) {  // NOLINT
@@ skipping 440 matching lines @@
     printf("Not a transition array\n");
   } else {
     reinterpret_cast<i::TransitionArray*>(object)->Print();
   }
 }
 
 extern void _v8_internal_Print_StackTrace() {
   i::Isolate* isolate = i::Isolate::Current();
   isolate->PrintStack(stdout);
 }