Revert of [runtime] Replace global object link with native context link in all contexts.

test/cctest/compiler/test-js-context-specialization.cc

Index: test/cctest/compiler/test-js-context-specialization.cc
diff --git a/test/cctest/compiler/test-js-context-specialization.cc b/test/cctest/compiler/test-js-context-specialization.cc
index 2f9976e6d499e0e2652b7ff08b769fcfcaf69c8e..e2612e9ea8b72f5269adbb1e5f5b0ab0924bb748 100644
--- a/test/cctest/compiler/test-js-context-specialization.cc
+++ b/test/cctest/compiler/test-js-context-specialization.cc
@@ -65,7 +65,7 @@
   subcontext2->set_previous(*subcontext1);
   subcontext1->set_previous(*native);
   Handle<Object> expected = t.factory()->InternalizeUtf8String("gboy!");
-  const int slot = Context::NATIVE_CONTEXT_INDEX;
+  const int slot = Context::GLOBAL_OBJECT_INDEX;
   native->set(slot, *expected);
 
   Node* const_context = t.jsgraph()->Constant(native);
@@ -136,7 +136,7 @@
   subcontext2->set_previous(*subcontext1);
   subcontext1->set_previous(*native);
   Handle<Object> expected = t.factory()->InternalizeUtf8String("gboy!");
-  const int slot = Context::NATIVE_CONTEXT_INDEX;
+  const int slot = Context::GLOBAL_OBJECT_INDEX;
   native->set(slot, *expected);
 
   Node* const_context = t.jsgraph()->Constant(native);
@@ -204,7 +204,7 @@
   // Make a context and initialize it a bit for this test.
   Handle<Context> native = t.factory()->NewNativeContext();
   Handle<Object> expected = t.factory()->InternalizeUtf8String("gboy!");
-  const int slot = Context::NATIVE_CONTEXT_INDEX;
+  const int slot = Context::GLOBAL_OBJECT_INDEX;
   native->set(slot, *expected);
 
   Node* const_context = t.jsgraph()->Constant(native);