Improve debug printing of non-strict arguments object.

src/objects-printer.cc

Index: src/objects-printer.cc
diff --git a/src/objects-printer.cc b/src/objects-printer.cc
index b1118de9c476f91f9b706059c516d66b81f7f1f3..9a1a58ef82a91415cbc6719a2632f04a0ea9f3ae 100644
--- a/src/objects-printer.cc
+++ b/src/objects-printer.cc
@@ -384,7 +384,7 @@ void JSObject::PrintElements(FILE* out) {
     case EXTERNAL_DOUBLE_ELEMENTS: {
       ExternalDoubleArray* p = ExternalDoubleArray::cast(elements());
       for (int i = 0; i < p->length(); i++) {
-        PrintF(out, "  %d: %f\n", i, p->get_scalar(i));
+        PrintF(out, "   %d: %f\n", i, p->get_scalar(i));
       }
       break;
     }
@@ -393,11 +393,16 @@ void JSObject::PrintElements(FILE* out) {
       break;
     case NON_STRICT_ARGUMENTS_ELEMENTS: {
       FixedArray* p = FixedArray::cast(elements());
+      PrintF(out, "   parameter map:");
       for (int i = 2; i < p->length(); i++) {
-        PrintF(out, "   %d: ", i);
+        PrintF(out, " %d:", i - 2);

[Toon Verwaest, 2012/11/28 13:20:54]

Magic constants ftw. If there is a k-version of this, please use that.
Otherwise, ignore my comment ;)

         p->get(i)->ShortPrint(out);
-        PrintF(out, "\n");
       }
+      PrintF(out, "\n   context: ");
+      p->get(0)->ShortPrint(out);
+      PrintF(out, "\n   arguments: ");
+      p->get(1)->ShortPrint(out);
+      PrintF(out, "\n");
       break;
     }
   }