DSL EXPRESSION:
begin{true}

AST:
"block" [tt:block] [nt:StatementBlock]
    "begin" [tt:kw_begin] [nt:BeginBlock]
        "block" [tt:block] [nt:StatementBlockInBraces]
            "block" [tt:block] [nt:StatementBlock]
                "true" [tt:literal_true] [nt:BareBoolean]
                    "true" [tt:literal_true] [nt:bool_literal]

