5111 – Static function-level variables are not in the language spec.

The language specification makes no reference to function-level static variables (other than in the grammar production rules). Static member variables and functions are mentioned in the "Attributes" page.
That page should (at a minimum) specify that:
- Local variables with the static storage class have a lifetime that extends beyond the function call.
- It should mention when and how they are initialised (before main, or at first use?).
- It should clarify whether statics with the same name, but different block scopes are allowed. i.e.
void main()
{
 { static int x; }
 { static int x; } // allowed?
}

Fixed in function.html