* graph_code/: fix warnings
* h_program-visual/: fix warnings
* matcher/: fix warnings
* lang_ml/parsing/: fix warnings
* lang_ml/analyze/visual/: fix warnings
* Makefile.common: allow warning 45
* lang_ml/analyze/: fix warnings
* lang_nw/parsing/: fix warnings
* lang_nw/analyze/: fix warnings
* lang_lisp/: fix warnings
* lang_haskell/: fix warnings
* lang_php/parsing/: fix warnings
* lang_php/matcher/: fix warnings
* lang_php/pretty/: fix warnings
* lang_sql/parsing/: fix warnings
* lang_js/: fix warnings
* lang_cpp/parsing/: fix warnings
* lang_cpp/analyze/: fix warnings
* lang_c/: fix warnings
* lang_objc/: fix warnings