Functions with empty (non-void) parameter list

[ForNeVeR]

Functions defined in this way has special meaning in C:

void foo() { }

This isn't the same as void foo(void) {} (which is a canonical empty parameter list).

Cesium should support those according to the standard. Currently, we treat them the same as the functions with (void) parameter list.

See possible // TODO[#87] in the code if you're looking to add this support.