-/* Add a using directive to using_directives. If the using directive in
- question has already been added, don't add it twice.
- Create a new struct using_direct which imports the namespace SRC into the
- scope DEST. ALIAS is the name of the imported namespace in the current
- scope. If ALIAS is NULL then the namespace is known by its original name.
- DECLARATION is the name if the imported varable if this is a declaration
- import (Eg. using A::x), otherwise it is NULL. The arguments are copied
- into newly allocated memory so they can be temporaries. */
+/* Add a using directive to using_directives. If the using directive
+ in question has already been added, don't add it twice.
+
+ Create a new struct using_direct which imports the namespace SRC
+ into the scope DEST. ALIAS is the name of the imported namespace
+ in the current scope. If ALIAS is NULL then the namespace is known
+ by its original name. DECLARATION is the name if the imported
+ varable if this is a declaration import (Eg. using A::x), otherwise
+ it is NULL. The arguments are copied into newly allocated memory
+ so they can be temporaries. */