Remove [PerWorldBindings] IDL attribute from non wrapper type attributes

Source/bindings/scripts/v8_attributes.py

Index: Source/bindings/scripts/v8_attributes.py
diff --git a/Source/bindings/scripts/v8_attributes.py b/Source/bindings/scripts/v8_attributes.py
index 6869958a6763465f4531a1671bf271a41843935c..d0466d9ca63e470d67cebca4cb0238bc5df9cffe 100644
--- a/Source/bindings/scripts/v8_attributes.py
+++ b/Source/bindings/scripts/v8_attributes.py
@@ -63,6 +63,9 @@ def generate_attribute(interface, attribute):
     is_reflect = 'Reflect' in extended_attributes
     if is_custom_element_callbacks or is_reflect:
         includes.add('core/dom/custom/CustomElementCallbackDispatcher.h')
+    # [PerWorldBindings]
+    if 'PerWorldBindings' in extended_attributes:
+        assert idl_type.is_wrapper_type or 'LogActivity' in extended_attributes, '[PerWorldBindings] should only be used with wrapper types: %s.%s' % (interface.name, attribute.name)
     # [RaisesException], [RaisesException=Setter]
     is_setter_raises_exception = (
         'RaisesException' in extended_attributes and