[Vala] Compiler not reporting illegal access from static method

[Nor Jaidi Tuah <norjaidi tuah ubd edu bn>]

Given the following, the compiler crashes and fails to
report the illegal reference to 'thread' in the
static method 'foo'.

        public class Foo {
                unowned Thread<void*> thread;
        
                public static void foo () {
                        if (thread == null) { }
                }
        
                public static void main() {}
        }

I'm currently using 0.13.0. Is this bug still in
0.14.x? Should I file a bug report?

hand
Nor Jaidi Tuah