Check for valid argument count at compile-time

[cher-nov]

Consider next code:

show_debug_message(123);
execute_string("
    show_debug_message(321);
    show_message(0,1,2,3);  // intended to create compilation error
");

In GM this will fail at execute_string invocation, but only at show_message in gm8emu.
This can lead to behaviour differences when ignorable errors will be implemented.

It would be nice to deduce the number of arguments in some way, e.g. from the function signature.
This will prevent definition duplication and possible errors with distinction between numeric and literal counts (e.g. when number of arguments was specified as 5, but only 4 are specified in expect_args!).