Syntax Tree not Semantic Analyzer
Adding Sigala's grammar
Removing namespace/using related rules
Removing assembly related rules
Removing template related production rules
Removing this self-reference rules
Removing ellipsis related rules
Removing auto related rules
Removing register related rules
Removing static related rules
Removing mutable related rules
Removing C++ cast related rules
Removing friend related rules
Removing export related rules
Removing virtual related rules
Removing exception related rules
Removing explicit/inline related rules
Removing goto related rules
Removing volatile related rules
Removing wchar_t related rules