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

src/compiler/typer.cc

 // Copyright 2014 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/compiler/typer.h"
 
 #include "src/base/flags.h"
 #include "src/bootstrapper.h"
 #include "src/compilation-dependencies.h"
 #include "src/compiler/common-operator.h"
@@ skipping 1379 matching lines @@
   return Type::Any();
 }
 
 
 Type* Typer::Visitor::TypeJSStoreContext(Node* node) {
   UNREACHABLE();
   return nullptr;
 }
 
 
+Type* Typer::Visitor::TypeJSLoadNativeContext(Node* node) {
+  return Type::Intersect(Type::Internal(), Type::TaggedPointer(), zone());
+}
+
+
 Type* Typer::Visitor::TypeJSLoadDynamic(Node* node) { return Type::Any(); }
 
 
 Type* Typer::Visitor::WrapContextTypeForInput(Node* node) {
   Type* outer = TypeOrNone(NodeProperties::GetContextInput(node));
   if (outer->Is(Type::None())) {
     return Type::None();
   } else {
     DCHECK(outer->Maybe(Type::Internal()));
     return Type::Context(outer, zone());
@@ skipping 968 matching lines @@
   }
   if (Type::IsInteger(*value)) {
     return Type::Range(value->Number(), value->Number(), zone());
   }
   return Type::Constant(value, zone());
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8