Test via is_anonymous in generate.py

[diivm]

Fix todo:

clang-bind/bindings/python/scripts/generate.py

Lines 152 to 156 in 2a77ee0

	# @TODO Fix this, `ANONYMOUS_kind` was removed, now test via `is_anonymous`
	elif sub_item["cursor_kind"]["name"] in (
	"ANONYMOUS_UNION_DECL",
	"ANONYMOUS_STRUCT_DECL",
	):

Planning to fix the todo here or in future? If future, please create issue

Originally posted by @kunaltyagi in #6 (comment)