- TSPHP-795 Reduce code branches - use antlr with fix 157
-- exchanged antlr library -> reduced branches from total 4296 down to 3640 and improved coverage from 1756 missed branches to 1225 missed branches (thus relative coverage increased from 64% to 66%)
-- added new parser component
-- fixed bug in ParameterListHelper.java -> using ModifierHelper now instead of hardcoded modifier sequence