Use JSGlobalProxy type for the global proxy field on Context.

R=mslekova@chromium.org

Change-Id: I1f60108effa15585a7cf5af150fc4c1d4dd9570f
Reviewed-on: https://chromium-review.googlesource.com/1142160Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54540}

src/contexts.cc

@@ -130,13 +130,11 @@ Context* Context::script_context() {
   return current;
 }
 
-
-JSObject* Context::global_proxy() {
+JSGlobalProxy* Context::global_proxy() {
   return native_context()->global_proxy_object();
 }
 
-
-void Context::set_global_proxy(JSObject* object) {
+void Context::set_global_proxy(JSGlobalProxy* object) {
   native_context()->set_global_proxy_object(object);
 }
 

src/contexts.h

@@ -110,7 +110,7 @@ enum ContextLookupFlags {
   V(WEAKSET_ADD_INDEX, JSFunction, weakset_add)
 
 #define NATIVE_CONTEXT_FIELDS(V)                                               \
-  V(GLOBAL_PROXY_INDEX, JSObject, global_proxy_object)                         \
+  V(GLOBAL_PROXY_INDEX, JSGlobalProxy, global_proxy_object)                    \
   V(EMBEDDER_DATA_INDEX, FixedArray, embedder_data)                            \
   /* Below is alpha-sorted */                                                  \
   V(ACCESSOR_PROPERTY_DESCRIPTOR_MAP_INDEX, Map,                               \
@@ -521,8 +521,8 @@ class Context : public FixedArray, public NeverReadOnlySpaceObject {
   Context* closure_context();
 
   // Returns a JSGlobalProxy object or null.
-  JSObject* global_proxy();
-  void set_global_proxy(JSObject* global);
+  JSGlobalProxy* global_proxy();
+  void set_global_proxy(JSGlobalProxy* global);
 
   // Get the JSGlobalObject object.
   V8_EXPORT_PRIVATE JSGlobalObject* global_object();

src/objects-inl.h

@@ -2564,10 +2564,7 @@ bool JSFunction::has_context() const {
   return READ_FIELD(this, kContextOffset)->IsContext();
 }
 
-JSObject* JSFunction::global_proxy() {
-  return context()->global_proxy();
-}
-
+JSGlobalProxy* JSFunction::global_proxy() { return context()->global_proxy(); }
 
 Context* JSFunction::native_context() { return context()->native_context(); }
 

src/objects.h

@@ -693,6 +693,7 @@ class PropertyArray;
 class FunctionLiteral;
 class FunctionTemplateInfo;
 class JSGlobalObject;
+class JSGlobalProxy;
 #ifdef V8_INTL_SUPPORT
 class JSLocale;
 class JSRelativeTimeFormat;
@@ -3114,7 +3115,7 @@ class JSFunction: public JSObject {
   inline Context* context();
   inline bool has_context() const;
   inline void set_context(Object* context);
-  inline JSObject* global_proxy();
+  inline JSGlobalProxy* global_proxy();
   inline Context* native_context();
 
   static Handle<Object> GetName(Isolate* isolate, Handle<JSFunction> function);