Parameter checking

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Declare and implement a class with SLB3
2. Call a method from this class from Lua code with too many, not enough or 
parameters with unexpected types

What is the expected output? What do you see instead?
The method is called with default parameter values.
An error should be thrown, or at least the method should have a way to check 
the parameters count and types.

What version of the product are you using (2.xx, 3.xx, hg rev )? On what
operating system?
SLB3, hg commit ca960f74cd93, GNU/Linux.

Please provide any additional information below.

Original issue reported on code.google.com by [email protected] on 1 Apr 2013 at 10:54