Try to fix cross-script global scope

src/contexts.cc

Index: src/contexts.cc
diff --git a/src/contexts.cc b/src/contexts.cc
index cb5e852d7d669c07c8d8b950016defff1572f49c..8eee85fdec15a72b4706aac52e2d8c265c46de4f 100644
--- a/src/contexts.cc
+++ b/src/contexts.cc
@@ -13,7 +13,10 @@ namespace internal {
 
 Context* Context::declaration_context() {
   Context* current = this;
-  while (!current->IsFunctionContext() && !current->IsNativeContext()) {
+  while (!current->IsFunctionContext() &&
+         !(current->IsGlobalContext() &&
+           current->previous()->IsNativeContext()) &&
+         !current->IsNativeContext()) {
     current = current->previous();
     ASSERT(current->closure() == closure());
   }