Harbour language analyzer

This is trying to create code analyzer
for Harbour language code
and add it later in HbIDE
and use it later in for NetBeans plugin
and use it later in other IDEs.
I use GIT here.

Harbour project
https://harbour.github.io/

Docs about ANTLR:
https://tomassetti.me/antlr-mega-tutorial
http://www.xfront.com/ANTLR/
about v.3:
http://www.r-5.org/files/books/computers/compilers/writing/Terence_Parr-The_Definitive_ANTLR_Reference-EN.pdf
about v.4:
https://pragprog.com/book/tpantlr2/the-definitive-antlr-4-reference
and help here
https://groups.google.com/forum/#!topic/antlr-discussion