Clean ast (#223)

Clean ast (#223)

* :art: Remove goto

* :art: Coding style (one line if/else)

* :art: Coding style (variable naming)

* :art: Coding style (one line if/else [fix])

* :art: Remove goto [fix]

* :art: const and ternary

* :art: More const

* :art: More const, again

* :art: Do not expand structures

* :art: Remove useless calls

* :art: Rewrite ensure_tmpl

* :art: Split functions, remove (now) useless variables

* :art: move functions closer to each other

* :art: Messing with git and myself

* :art: Somehow getting it right

* :art: Avoid memleak, small functions

* :art: Fixes

* :art: Improve checking :smile:

* :bug: Fix array (somehow forgotten before)

* :art: Remove useless addr

* :art: Remove useless cast->func

* :art: Resolve some conflicts

* :art: Remove useless Id_List->pos

* :art: Clean headers

* :art: Indentation

* :art: Improve stmt location

* :art: Improve exp location

* :art: Upate

* :wrench: Test preprocessor options

* :wrench: Update ast

* :art: Update plugin infos