Actual implementation of 'is()'.

Signed-off-by: Erik de Bruin <erik@ixsoftware.nl>
This allows pure Actionscript projects to be compiled using FalconJx. It's kinda like the 'Application.js', but different ;-)

Signed-off-by: Erik de Bruin <erik@ixsoftware.nl>
LanguageTests example.

Signed-off-by: Erik de Bruin <erik@ixsoftware.nl>
If the 'interfaces' array is implemented as a class constant, the Closure Compiler (release mode) "optimises" it to a global variable, thereby making it unreachable with a class member access. When instead using a class member for storage, and using an instance for access, the code is no longer optimised into oblivion.

Signed-off-by: Erik de Bruin <erik@ixsoftware.nl>