callablep does a good job of showing what is and isn't callable. The compiler appears to be stricter than the runtime. Should that be changed?
Pike v8.1 release 2 running Hilfe v3.5 (Incremental Pike Frontend)
> ({})();
Compiler Error: 1: Attempt to call a non function value empty array.
Compiler Error: 1: Expected: function.
Compiler Error: 1: Got : array(zero).
> array a = ({});
> a();
(1) Result: ({ })
> callablep( ({}) );
(2) Result: 1
> callablep( a );
(3) Result: 1
