andrei/modelverse @ bccf14021dbb7a28b4b1dd14c323896494b3c587

sklonowany z yentl/modelverse

Yentl Van Tendeloo 015150cdaf Readded modify, and added attr_add and attr_del		9 lat temu
..
grammars	536e752b8a Add new tests for the constructor	9 lat temu
hutn_compiler	d3498a4812 Merge branch 'yentl' into new-primitives	9 lat temu
includes	015150cdaf Readded modify, and added attr_add and attr_del	9 lat temu
test	926d56fc68 Change the complete interface of Visitors (using arguments)	9 lat temu