Fix

[ 1124295 ] Function's __name__ no longer accessible in restricted mode

which I introduced with a bit of mindless copy-paste when making
__name__ writable.  You can't assign to __name__ in restricted mode,
which I'm going to pretend was intentional :)
diff --git a/Lib/test/test_funcattrs.py b/Lib/test/test_funcattrs.py
index 1acfeb5..7a083b7 100644
--- a/Lib/test/test_funcattrs.py
+++ b/Lib/test/test_funcattrs.py
@@ -276,6 +276,9 @@
     verify(f.func_name == "h")
     cantset(f, "func_globals", 1)
     cantset(f, "__name__", 1)
+    # test that you can access func.__name__ in restricted mode
+    s = """def f(): pass\nf.__name__"""
+    exec s in {'__builtins__':{}}
 
 
 def test_func_code():
diff --git a/Objects/funcobject.c b/Objects/funcobject.c
index c7f7c9d..c0c91c9 100644
--- a/Objects/funcobject.c
+++ b/Objects/funcobject.c
@@ -262,8 +262,6 @@
 static PyObject *
 func_get_name(PyFunctionObject *op)
 {
-	if (restricted())
-		return NULL;
 	Py_INCREF(op->func_name);
 	return op->func_name;
 }