Add comments on parasites classes so that it's easier to remember what it actually does.
Add documentation in variable code.
Delete garbage
Added initial structure for pointers.
Fix operator precedence problem. Of operators with equal precedence, right associative ones go first.
Disable dump
Furter fixes for shunting yard algorithm
Fixes for pointers
- All user types now provides get_type() for the pointer framework to use
- Some internal restructuring in value_holder and value
- Move ugly value_holder macros to separate file, add get_type() in them
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