Add an API to create a detached global object

src/factory.h

Index: src/factory.h
diff --git a/src/factory.h b/src/factory.h
index 26c73062f8ad05b8610bdb2c0d19779aeceaa273..a79aeede9c57e7b8b46e7e6b7f777714448804f3 100644
--- a/src/factory.h
+++ b/src/factory.h
@@ -502,6 +502,10 @@ class Factory final {
 
   Handle<JSGlobalProxy> NewUninitializedJSGlobalProxy();
 
+  Handle<JSFunction> NewFunction(Handle<Map> map,
+                                 Handle<SharedFunctionInfo> info,
+                                 Handle<Object> context_or_undefined,
+                                 PretenureFlag pretenure = TENURED);
   Handle<JSFunction> NewFunction(Handle<String> name, Handle<Code> code,
                                  Handle<Object> prototype,
                                  bool is_strict = false);
@@ -512,7 +516,7 @@ class Factory final {
 
   Handle<JSFunction> NewFunctionFromSharedFunctionInfo(
       Handle<Map> initial_map, Handle<SharedFunctionInfo> function_info,
-      Handle<Context> context, PretenureFlag pretenure = TENURED);
+      Handle<Object> context_or_undefined, PretenureFlag pretenure = TENURED);
 
   Handle<JSFunction> NewFunctionFromSharedFunctionInfo(
       Handle<SharedFunctionInfo> function_info, Handle<Context> context,
@@ -709,12 +713,6 @@ class Factory final {
   // Update the cache with a new number-string pair.
   void SetNumberStringCache(Handle<Object> number, Handle<String> string);
 
-  // Creates a function initialized with a shared part.
-  Handle<JSFunction> NewFunction(Handle<Map> map,
-                                 Handle<SharedFunctionInfo> info,
-                                 Handle<Context> context,
-                                 PretenureFlag pretenure = TENURED);
-
   // Create a JSArray with no elements and no length.
   Handle<JSArray> NewJSArray(ElementsKind elements_kind,
                              PretenureFlag pretenure = NOT_TENURED);