Try to fix cross-script global scope

src/compiler.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/v8.h"
 
 #include "src/compiler.h"
 
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
@@ skipping 880 matching lines @@
   CompilationCache* compilation_cache = isolate->compilation_cache();
   MaybeHandle<SharedFunctionInfo> maybe_shared_info =
       compilation_cache->LookupEval(source, context, strict_mode,
                                     scope_position);
   Handle<SharedFunctionInfo> shared_info;
 
   if (!maybe_shared_info.ToHandle(&shared_info)) {
     Handle<Script> script = isolate->factory()->NewScript(source);
     CompilationInfoWithZone info(script);
     info.MarkAsEval();
-    if (context->IsNativeContext()) info.MarkAsGlobal();
+    if (context->IsNativeContext() || context->IsGlobalContext()) {
+      info.MarkAsGlobal();
+    }
     info.SetStrictMode(strict_mode);
     info.SetParseRestriction(restriction);
     info.SetContext(context);
 
     Debug::RecordEvalCaller(script);
 
     shared_info = CompileToplevel(&info);
 
     if (shared_info.is_null()) {
       return MaybeHandle<JSFunction>();
@@ skipping 424 matching lines @@
   AllowHandleDereference allow_deref;
   bool tracing_on = info()->IsStub()
       ? FLAG_trace_hydrogen_stubs
       : (FLAG_trace_hydrogen &&
          info()->closure()->PassesFilter(FLAG_trace_hydrogen_filter));
   return (tracing_on &&
       base::OS::StrChr(const_cast<char*>(FLAG_trace_phase), name_[0]) != NULL);
 }
 
 } }  // namespace v8::internal