Separating transitions from descriptors.

src/profile-generator.cc

Index: src/profile-generator.cc
diff --git a/src/profile-generator.cc b/src/profile-generator.cc
index 217046f6e560303189b264cea9d70b9c5d81b70c..04c79425239429dc93b7b253d3fff128c235f622 100644
--- a/src/profile-generator.cc
+++ b/src/profile-generator.cc
@@ -2218,9 +2218,8 @@ void V8HeapExplorer::ExtractPropertyReferences(JSObject* js_obj, int entry) {
         case NORMAL:  // only in slow mode
         case HANDLER:  // only in lookup results, not in descriptors
         case INTERCEPTOR:  // only in lookup results, not in descriptors
-        case MAP_TRANSITION:  // we do not care about transitions here...
-        case CONSTANT_TRANSITION:
           break;
+        case TRANSITION:
         case NONEXISTENT:
           UNREACHABLE();
           break;