Missing test output
Add support for parsing default arguments and storing them in the parse tree
Test case for default arguments to methods
Create 'fake arguments' as local variables for method with default arguments, and let them alias the real argument position after assigning either the default value, or the real provided argument to it, depending on whether the caller provided a value
Add checks for minimum/maximum arguments to a method; fixes register allocation problems when any of the caller-saved registers gets allocated before a method call, and used after; corrects numargs handling for splats